Ashburn, VA

3:27 AM EDT on May 19, 2013 (GMT -0400)
Elev: 299 ft
Lon: 77.5° W
Lat: 39.0° N
Source
Rapid Fire Updates™
 Updated 3:27 AM EDT Get Free Weather Stickers® Share:
Your Custom Weather Sticker®

Copy the following lines of HTML:
Get more styles and options for your Weather Sticker® here.
News
Real-Time Updates: Severe Weather Outbreak
May 18, 2013
The latest breaking news, tornado warnings, photos and more.
64, Including Saudi Arabian Woman, Scale Mount Everest
May 18, 2013
More than five dozens climbers successfully scaled Mount Everest.
Flash Flooding Swamps Parts of Alabama
May 18, 2013
The photos, reports, and perspective behind flooding rain in parts of Alabama Saturday.
Active Volcano Captured in Stunning Photos
May 17, 2013
Indonesian-born and Qatar-based photographer Helminadia Ranford captured breathtaking photos of Mt. Bromo, an active volcano in East Java, Indonesia.
NASA: New Pump Resolves Big Space Station Leak
May 17, 2013
A spacewalk has repaired a leak on the International Space Station, NASA said.
Record Snow: Where Winter Won't End
May 18, 2013
Spring warmth has arrived in most of the U.S., except this state.
Storm Damage near Shreveport
May 16, 2013
Storm storms leave damage near Shreveport, Louisiana. See photos and tweets.
Texas Tornadoes: As They Happened
May 18, 2013
We walk through the full timeline of the Texas tornadoes on May 15, 2013.
By Man or Nature, Places That Will Never Be the Same
May 16, 2013
Where Earth has been changed forever.
Smaller Glaciers Boost Sea Level as Much as the Giants
May 16, 2013
Thousands of small glaciers, unconnected to continental-scale ice sheets, have dumped about 260 million tons of meltwater into the ocean annually between 2003 and 2009.
Deadly Texas Outbreak May Mark End of Tornado Drought
May 16, 2013
After months with record-low activity, the 2013 tornado season roared back with a vengeance on Wednesday as at least 10 twisters touched down across portions of north-central Texas, killing at least 6 and injuring dozens more.
Alaska Volcano Shoots Ash 15,000 Feet into Air
May 18, 2013
Steam and ash clouds are occasionally rising to 20,000 feet from an active Alaska volcano.
Mexico Volcano Registers More Seismic Activity
May 16, 2013
Seismic activity is continuing at the Popocatepetl volcano near Mexico City and authorities say they have readied shelters and identified evacuation routes in case they should be needed.
Cyclone Mahasen Weakens After Killing 45 in Bangladesh
May 16, 2013
Cyclone Mahasan weakened Thursday afternoon into a tropical storm and then dissipated, causing far less damage than had been feared as it passed over Bangladesh and spared Myanmar almost entirely, meteorological officials said.
Worldwide Cleanup Reveals Trashed Beaches (PHOTOS)
May 17, 2013
The Ocean Conservancy releases stunning photos from its recent international beach cleanup day.
Oldest Water on Earth Found Deep Underground
May 17, 2013
Finding the oldest water on Earth has implications for understanding life on Earth and maybe Mars.
Tornado-Ravaged Texas Town to Start Recovery
May 18, 2013
It's now time to move on in a Texas town wrecked by a massive twister.
Study: 97% Agreement on Manmade Global Warming
May 16, 2013
The scientific agreement that climate change is happening, and that it's caused by human activity, is significant and growing, according to a new study published Thursday.
Social Media Reacts as Deadly Severe Weather Pelts Texas
May 16, 2013
Severe weather broke out in northeastern Texas, including the Dallas Fort Worth area. Below are reports of hail and tornadoes from throughout social media.
Kepler's Alien-Hunting Days May be Numbered
May 15, 2013
NASA's planet-hunting Kepler telescope is broken, possibly jeopardizing searches for life outside the Milky Way.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground Forecast for Sunday, May 19, 2013.

Severe thunderstorm activity will persist for the Plains on Sunday as a broad low pressure system continues trekking through the region. The system will move from the Northern Plains and into the Great Lakes, creating two frontal boundaries. The warm front associated with this system will extend eastward over the Great Lakes and into the Northeast, kicking up scattered showers and thunderstorms into Sunday night. At the same time, a cold front extends southward from this system which will move off the Central Rockies and into the Central and Southern Plains. Counter-clockwise flow around this broad system will pull moisture and energy into the Plains from the Gulf of Mexico. This will support moderate to heavy showers and thunderstorms in between these two fronts. This system has a history of severe thunderstorm development across the Northern and Central Plains, thus, there is a moderate risk of severe thunderstorm development with large hail, damaging winds, and multiple tornadoes. These severe thunderstorms will most likely develop across central and eastern Oklahoma, through eastern Kansas, and into western Missouri. A slight risk of severe storm development remains in effect from northern Texas, through southern Minnesota and Wisconsin on Sunday. At the same time, the back side of this system will continue spreading moisture over the Intermountain West and Rockies. This will trigger more showers with isolated thunderstorms over the region through Sunday evening.

Meanwhile in the East, a trough of low pressure slowly moves over the East Coast and maintains shower and thunderstorm activity for the Mid-Atlantic states through the Northeast.
Weather Underground Forecast for Sunday, May 19, 2013.

Severe thunderstorm activity will persist for the Plains on Sunday as a broad low pressure system continues trekking through the region. The system will move from the Northern Plains and into the Great Lakes, creating two frontal boundaries. The warm front associated with this system will extend eastward over the Great Lakes and into the Northeast, kicking up scattered showers and thunderstorms into Sunday night. At the same time, a cold front extends southward from this system which will move off the Central Rockies and into the Central and Southern Plains. Counter-clockwise flow around this broad system will pull moisture and energy into the Plains from the Gulf of Mexico. This will support moderate to heavy showers and thunderstorms in between these two fronts. This system has a history of severe thunderstorm development across the Northern and Central Plains, thus, there is a moderate risk of severe thunderstorm development with large hail, damaging winds, and multiple tornadoes. These severe thunderstorms will most likely develop across central and eastern Oklahoma, through eastern Kansas, and into western Missouri. A slight risk of severe storm development remains in effect from northern Texas, through southern Minnesota and Wisconsin on Sunday. At the same time, the back side of this system will continue spreading moisture over the Intermountain West and Rockies. This will trigger more showers with isolated thunderstorms over the region through Sunday evening.

Meanwhile in the East, a trough of low pressure slowly moves over the East Coast and maintains shower and thunderstorm activity for the Mid-Atlantic states through the Northeast.
More News Articles

Ashburn Weather at a Glance

Updated 3:27 AM EDT
Elevation
279 ft
Report Station
You are about to report this weather station for bad data.

Please select the information which is incorrect and click 'Submit' otherwise click 'Cancel'.

— Cancel

Now
Overcast
Overcast
Temperature
58.8 °F
Feels Like 58.8 °F
Wind(mph)
0.0
Sunrise / Set
5:53 AM
8:19 PM
Moon
First Quarter
Tonight
Chance of Rain 59 °F
Chance of Rain
80% chance of precipitation
Sunday
Rain Showers 75 °F
Rain Showers
90% chance of precipitation
Sunday Night
Chance of Rain 63 °F
Chance of Rain
50% chance of precipitation
Monday
Chance of a Thunderstorm 82 | 66 °F
Chance of T-storms
40% chance of precipitation
Tuesday
Chance of a Thunderstorm 93 | 64 °F
Chance of a Thunderstorm
20% chance of precipitation
Wednesday
Chance of a Thunderstorm 88 | 66 °F
Chance of T-storms
50% chance of precipitation
Today is forecast to be Warmer than yesterday.
Conditions
Pressure
30.20 in
Visibility
1.5 miles
Clouds
Overcast 300 ft
Moisture
Humidity
97%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KJYO 190715Z AUTO 07003KT 1 1/2SM BR OVC003 15/15 A3020 RMK AO2
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
58.8 °F
59,59,59,59,59,59,59,59,59,59,59,59,59
Dew Point
58 °F
Wind
Speed / Dir
Calm
Wind Gust
0.0 mph
Health
UV
0 out of 16
Pollen
4.50 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Sporadic
View Flu Map
Loading…
Source: BestForecast
Descriptive Forecast
Sunday
rain Overcast with rain showers. Fog early. High of 75F. Winds from the SSE at 10 to 15 mph. Chance of rain 90% with rainfall amounts near 0.3 in. possible.
Sunday Night
nt_chancerain Overcast with a chance of rain. Low of 63F. Winds from the SSE at 5 to 15 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.
Monday
chancetstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 82F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.
Monday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 66F. Winds less than 5 mph. Chance of rain 30%.
Tuesday
partlycloudy Partly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 93F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.
Tuesday Night
nt_chancetstorms Overcast in the evening, then mostly cloudy with a chance of a thunderstorm and rain. Low of 64F. Winds less than 5 mph. Chance of rain 50%.
Wednesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 88F. Winds from the SE at 5 to 10 mph. Chance of rain 50%.
Wednesday Night
nt_clear Partly cloudy with a chance of a thunderstorm and rain. Fog overnight. Low of 66F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.
Thursday
chancetstorms Partly cloudy with a chance of a thunderstorm and rain in the morning, then overcast with a chance of a thunderstorm and rain. High of 84F. Winds from the SSW at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Thursday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 66F. Winds from the South at 5 to 10 mph. Chance of rain 80% with rainfall amounts near 1.0 in. possible.
Friday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 77F. Winds from the SW at 5 to 10 mph. Chance of rain 60%.
Friday Night
nt_chancetstorms Clear with a chance of a thunderstorm. Low of 48F. Winds from the WNW at 10 to 15 mph. Chance of rain 50%.
Saturday
chancerain Clear with a chance of rain. High of 75F. Winds from the NNW at 5 to 15 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Saturday Night
nt_chancerain Overcast with a chance of rain. Fog overnight. Low of 50F. Winds from the North at 5 to 10 mph. Chance of rain 40%.
Sunday
partlycloudy Clear. High of 75F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Monday
clear Clear. High of 70F. Winds less than 5 mph.
Monday Night
nt_clear Clear. Low of 52F. Winds less than 5 mph.
Tuesday
clear Clear. High of 73F. Winds less than 5 mph.
Tuesday Night
nt_partlycloudy Clear with a chance of a thunderstorm. Low of 57F. Winds less than 5 mph. Chance of rain 20%.
Wednesday
partlycloudy Clear. High of 81F. Winds less than 5 mph.
Wednesday Night
nt_partlycloudy Clear. Low of 57F. Winds less than 5 mph.
Loading…
 
First Previous Last Next  
Updated:  
 
 

 

Weather Forecast for Ashburn VA

View Calendar 10-Day Forecast for station KVAASHBU18

Sunday, 19
Rain Showers
75 | 63 °F
Rain Showers
Chance of
Precipitation
90%
Monday, 20
Chance of a Thunderstorm
82 | 66 °F
Chance of T-storms
Chance of
Precipitation
40%
Tuesday, 21
Chance of a Thunderstorm
93 | 64 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Wednesday, 22
Chance of a Thunderstorm
88 | 66 °F
Chance of T-storms
Chance of
Precipitation
50%
Thursday, 23
Chance of a Thunderstorm
84 | 66 °F
Chance of T-storms
Chance of
Precipitation
60%
Friday, 24
Chance of a Thunderstorm
77 | 48 °F
Chance of T-storms
Chance of
Precipitation
60%
Saturday, 25
Chance of Rain
75 | 50 °F
Chance of Rain
Chance of
Precipitation
60%
Sunday, 26
Partly Cloudy
75 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 27
Clear
70 | 52 °F
Clear
Chance of
Precipitation
0%
Tuesday, 28
Clear
73 | 57 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Sunday
rain Overcast with rain showers. Fog early. High of 75F. Winds from the SSE at 10 to 15 mph. Chance of rain 90% with rainfall amounts near 0.3 in. possible.
Sunday Night
nt_chancerain Overcast with a chance of rain. Low of 63F. Winds from the SSE at 5 to 15 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 61 | 57 70 | 60 71 | 59 67 | 55
Wind 7 mph ESE 10 mph SSE 11 mph SSE 7 mph SSE
Humidity 90% 67% 64% 68%
Chance of Precip. 80% 90% 90% 60%
Cloud Cover 99% 100% 99% 95%
Conditions Rain Showers Rain Showers Rain Showers Chance of Rain
Sunrise & Sunset
5:53 AM
8:19 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.82], Average RMSE [2.39]
The National Weather Service forecast quality is good. MaxT RMSE [1.59], Average RMSE [1.81] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Monday
chancetstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 82F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.
Monday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 66F. Winds less than 5 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 64 | 58 76 | 61 77 | 61 71 | 63
Wind 6 mph South 6 mph South 7 mph South 4 mph South
Humidity 80% 58% 56% 75%
Chance of Precip. 50% 40% 40% 30%
Cloud Cover 92% 82% 79% 72%
Conditions Chance of Rain Chance of a Thunderstorm Chance of a Thunderstorm Chance of Rain
Sunrise & Sunset
5:52 AM
8:20 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.17], Average RMSE [2.50]
The National Weather Service forecast quality is good. MaxT RMSE [2.39], Average RMSE [2.17] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 93F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.
Tuesday Night
nt_chancetstorms Overcast in the evening, then mostly cloudy with a chance of a thunderstorm and rain. Low of 64F. Winds less than 5 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 67 | 63 82 | 65 86 | 66 75 | 69
Wind 2 mph SW 5 mph WSW 5 mph SW 5 mph SSW
Humidity 84% 57% 54% 80%
Chance of Precip. 10% 10% 20% 10%
Cloud Cover 68% 61% 71% 98%
Conditions Mostly Cloudy Partly Cloudy Chance of a Thunderstorm Overcast
Sunrise & Sunset
5:52 AM
8:21 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.24], Average RMSE [2.01]
The National Weather Service forecast quality is fair. MaxT RMSE [2.88], Average RMSE [2.99] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Wednesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 88F. Winds from the SE at 5 to 10 mph. Chance of rain 50%.
Wednesday Night
nt_clear Partly cloudy with a chance of a thunderstorm and rain. Fog overnight. Low of 66F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 66 | 65 81 | 73 84 | 71 78 | 69
Wind 2 mph ESE 5 mph SE 8 mph SSE 7 mph SSW
Humidity 97% 78% 65% 75%
Chance of Precip. 30% 30% 20% 10%
Cloud Cover 87% 90% 80% 0%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Clear
Sunrise & Sunset
5:51 AM
8:22 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.55], Average RMSE [2.96]
The National Weather Service forecast quality is fair. MaxT RMSE [3.26], Average RMSE [3.21] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Thursday
chancetstorms Partly cloudy with a chance of a thunderstorm and rain in the morning, then overcast with a chance of a thunderstorm and rain. High of 84F. Winds from the SSW at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Thursday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 66F. Winds from the South at 5 to 10 mph. Chance of rain 80% with rainfall amounts near 1.0 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 67 | 67 77 | 71 80 | 73 69 | 67
Wind 7 mph SSW 7 mph SSW 5 mph SW 8 mph South
Humidity 99% 81% 78% 95%
Chance of Precip. 10% 30% 30% 40%
Cloud Cover 0% 68% 99% 95%
Conditions Fog Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:50 AM
8:23 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.65], Average RMSE [2.56]
The National Weather Service forecast quality is poor. MaxT RMSE [3.67], Average RMSE [3.41] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Friday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 77F. Winds from the SW at 5 to 10 mph. Chance of rain 60%.
Friday Night
nt_chancetstorms Clear with a chance of a thunderstorm. Low of 48F. Winds from the WNW at 10 to 15 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 67 | 67 72 | 69 75 | 67 65 | 55
Wind 7 mph SSW 8 mph SSW 5 mph WSW 11 mph NW
Humidity 99% 88% 76% 72%
Chance of Precip. 40% 20% 20% 30%
Cloud Cover 99% 94% 79% 0%
Conditions Chance of a Thunderstorm Chance of Rain Chance of a Thunderstorm Chance of Rain
Sunrise & Sunset
5:50 AM
8:24 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.60], Average RMSE [2.99]
The National Weather Service forecast quality is poor. MaxT RMSE [3.56], Average RMSE [3.43] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Saturday
chancerain Clear with a chance of rain. High of 75F. Winds from the NNW at 5 to 15 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Saturday Night
nt_chancerain Overcast with a chance of rain. Fog overnight. Low of 50F. Winds from the North at 5 to 10 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 47 65 | 53 71 | 55 57 | 54
Wind 9 mph NW 11 mph NNW 8 mph North 5 mph NNE
Humidity 92% 64% 57% 88%
Chance of Precip. 10% 20% 30% 20%
Cloud Cover 0% 0% 50% 96%
Conditions Clear Chance of Rain Chance of Rain Chance of Rain
Sunrise & Sunset
5:49 AM
8:24 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.90], Average RMSE [3.11]
The National Weather Service forecast quality is fair. MaxT RMSE [3.19], Average RMSE [3.35] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Sunday
partlycloudy Clear. High of 75F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 52 58 | 55 64 | 54 60 | 51
Wind 4 mph North 4 mph NE 4 mph ENE 3 mph NE
Humidity 92% 86% 71% 73%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 50% 25% 14% 6%
Conditions Fog Clear Clear Clear
Sunrise & Sunset
5:48 AM
8:25 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.09], Average RMSE [4.73]
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Monday
clear Clear. High of 70F. Winds less than 5 mph.
Monday Night
nt_clear Clear. Low of 52F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 47 66 | 47 64 | 48 57 | 47
Wind 3 mph NE 4 mph NE 4 mph East 3 mph East
Humidity 72% 49% 57% 73%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 3% 1% 1% 1%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:48 AM
8:26 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.12], Average RMSE [5.02]
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Tuesday
clear Clear. High of 73F. Winds less than 5 mph.
Tuesday Night
nt_partlycloudy Clear with a chance of a thunderstorm. Low of 57F. Winds less than 5 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 46 68 | 49 70 | 54 60 | 55
Wind 2 mph ESE 3 mph SE 5 mph SE 4 mph SSE
Humidity 67% 49% 56% 88%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 1% 2% 4% 15%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:47 AM
8:27 PM
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Wednesday
partlycloudy Clear. High of 81F. Winds less than 5 mph.
Wednesday Night
nt_partlycloudy Clear. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 62 | 57 72 | 59 80 | 62 67 | 62
Wind 3 mph SSE 3 mph SSE 4 mph SSE 3 mph SSE
Humidity 84% 60% 54% 84%
Chance of Precip. 10% 10% 0% 0%
Cloud Cover 32% % % %
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 19, 2013 Max Temp Min Temp
Normal (KIAD) 76 °F 52 °F
Record (KIAD) 92 °F (1997) 36 °F (2002)
Yesterday 68 °F 59 °F
Yesterday's Heating Degree Days: 1
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Good
OZONE
Yesterday Good
PM10
Current Good
PM2.5
Current Good
OZONE
Sunday Good
OZONE
Sunday Good
PM2.5
Monday Good
OZONE
Monday Good
PM2.5
Coastal Water Temperatures
Place Temperature
Washington, DC 64.9 °F
Baltimore, MD 66.0 °F
Solomons Island, MD 66.0 °F
Marine Forecast
Astronomy
May. 19, 2013 Rise Set
Actual Time 5:53 AM EDT 8:19 PM EDT
Civil Twilight 5:23 AM EDT 8:50 PM EDT
Nautical Twilight 4:45 AM EDT 9:28 PM EDT
Astronomical Twilight 4:03 AM EDT 10:10 PM EDT
Moon 2:24 PM EDT 2:12 AM EDT
Length Of Visible Light 15h 27m
Length of Day
14h 26m
Tomorrow will be 1m 38s longer.
First Quarter, 61% of the Moon is Illuminated
Today
First Quarter
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
69 °F
Franklin
69 °F
Oceana NAS
69 °F
Suffolk
69 °F
Chesapeake
68 °F
Newport News
55 °F
Hot Springs
57 °F
Winchester
59 °F
Leesburg
59 °F
Orange
59 °F
Fort Belvoir
Record Extremes
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
Follow us on Twitter Find us on Facebook Community
WunderPhotos®
Storms Approaching
Finally !!!
• • • • • • • • • •
Uploaded by: Nikongranny
1,612,684 photos uploaded!
Upload a photo now
Visit WunderPhotos
WunderBlogs®
Gifts From My Garden
By Proserpina 12 hours ago
Visit WunderBlogs
Travel & Activities
Travel Planning
Travel Planner Road Trip Planner
Destination? *
When are you going?
to
Is there an activity you would like to explore?
* Required field
View all Travel Tools
Aviation
City Temp. Conditions Updated
Leesburg 59 °F Overcast 3:15 AM EDT
Dulles Airport 59 °F Overcast 2:54 AM EDT
Gaithersburg 59 °F Overcast 3:15 AM EDT
Manassas This station is not reporting.
View all Aviation Tools
Flight To ETA Status
JBU300
Long Beach, CA 		KIAD 05:05AM On Time
UAL1656
San Diego, CA 		KIAD 05:56AM On Time
UAL977
Dubai 		KIAD 05:57AM On Time
SAA207
Yoff 		KIAD 06:20AM On Time
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: LIFR (KJYO)
Wind Speed: 3.0 kts.
Wind Dir: 115° (ESE)
Ceiling: 300 ft

METAR KJYO 190715Z AUTO 07003KT 1 1/2SM BR OVC003 15/15 A3020 RMK AO2

View all Reports & Maps
Nearby Events
Event Date Forecast
Jason Masi 9:00 PM EDT
2013-04-16		 Chance of Rain, 67°F
Acoustic Tuesday 9:00 PM EDT
2013-04-16		 Chance of Rain, 67°F
Austin Ellis Live 9:00 PM EDT
2013-04-19		 Chance of Rain, 74°F
2013 Ride to Provide 8:00 AM EDT
2013-04-20		 Mostly Cloudy, 50°F
2013 Ride to Provide Volunteer 7:00 AM EDT
2013-04-20		 Chance of Rain, 50°F
NOVA Roller Derby Presents - NOVA Skate Troopers vs. Atlantic Coast Roller Girls 4:00 PM EDT
2013-04-20		 Partly Cloudy, 68°F
Event data courtesy eviesays.com
Sports
View all Sports Weather
Videos
Year In Weather 2012

Watch the nearly year-long satellite animation as Weather Underground calls out the most significant weather events of the past year, including Superstorm Sandy and Hurricane Isaac.

Visit Our Video Section
Weather Stations
Station Location Temp. Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Ashburn Village 1, Ashburn, VA 58.8 °F 58 °F 97% ESE  at  0.0 mph 0.00 in / hr 279 ft 3:27 AM EDT Rapid Fire  
Ashburn Village, Ashburn, VA 59.0 °F 58 °F 97% NW  at  0.0 mph - / hr 320 ft 3:21 AM EDT Normal  
Belmont Country Club, Ashburn, VA 58.8 °F 57 °F 95% East  at  0.0 mph 0.00 in / hr 302 ft 3:27 AM EDT Rapid Fire
Kincaid Forest, Leesburg, VA 59.3 °F 59 °F 98% NE  at  0.0 mph 0.00 in / hr 294 ft 3:24 AM EDT Normal  
Weatherscience.net, Potomac Falls, VA 58.4 °F 58 °F 97% East  at  1.2 mph 0.00 in / hr 276 ft 3:27 AM EDT Rapid Fire
Brambleton, Brambleton, VA 59.5 °F 58 °F 96% North  at  0.0 mph 0.00 in / hr 310 ft 3:27 AM EDT Rapid Fire  
Lakes at Red Rock, Leesburg, VA 58.4 °F 57 °F 96% NE  at  0.0 mph 0.00 in / hr 276 ft 3:20 AM EDT Normal  
Brambleton, Ashburn, VA 58.5 °F 58 °F 99% ESE  at  2.2 mph - / hr 358 ft 3:27 AM EDT Normal  
VADOT Site_G, Herndon, VA 59 °F 58 °F 97% NE  at  5 mph 0.00 in / hr 339 ft 2:44 AM EDT MADIS
Big Woods, Leesburg, VA 57.8 °F 56 °F 94% SW  at  0.0 mph 0.00 in / hr 489 ft 3:24 AM EDT Normal  
APRSWXNET Great Falls VA , Sterling, VA 58 °F 57 °F 95% NNE  at  0 mph 0.00 in / hr 321 ft 2:52 AM EDT MADIS
Emerald Park Estates, Leesburg, VA 57.9 °F 57 °F 97% ENE  at  0.0 mph 0.00 in / hr 444 ft 3:27 AM EDT Rapid Fire  
NonFedAWOS WASHINGTON DULLES , Dulles, VA 59 °F 57 °F 94% NE  at  6 mph 0.00 in / hr 1023 ft 2:54 AM EDT MADIS
Falls Brook, Herndon, VA 58.2 °F 57 °F 97% West  at  0.0 mph 0.00 in / hr 280 ft 3:19 AM EDT Normal  
Downtown, Leesburg, VA 58.9 °F 57 °F 92% East  at  0.0 mph 0.00 in / hr 344 ft 3:27 AM EDT Rapid Fire
APRSWXNET Reston VA , Herndon, VA 58 °F 56 °F 94% SSW  at  0 mph 0.00 in / hr 454 ft 3:03 AM EDT MADIS
Roxbury Heights Estates, Leesburg, VA 58.4 °F 58 °F 98% ESE  at  0.0 mph - / hr 594 ft 3:24 AM EDT Normal  
Shenstone, Leesburg, VA 58.1 °F 58 °F 99% North  at  0.0 mph 0.00 in / hr 560 ft 3:27 AM EDT Rapid Fire  
Great Falls VA, Great Falls, VA 58.1 °F 58 °F 100% East  at  0.0 mph - / hr 380 ft 3:26 AM EDT Normal
APRSWXNET Great Falls VA , Great Falls, VA 57 °F 57 °F 100% ENE  at  0 mph 0.00 in / hr 380 ft 2:56 AM EDT MADIS
Chantilly Highlands, Herndon, VA 59.0 °F 59 °F 99% SE  at  1.6 mph 0.00 in / hr 340 ft 3:27 AM EDT Rapid Fire  
Ridings at Blue Springs, Chantilly, VA 59.5 °F 58 °F 95% SE  at  0.0 mph 0.00 in / hr 303 ft 3:26 AM EDT Normal
Golf Course Island, Reston, VA 58.9 °F 58 °F 95% SE  at  0.0 mph 0.00 in / hr 390 ft 3:27 AM EDT Rapid Fire  
APRSWXNET Darnestown1-SW MD , Germantown, MD 58 °F 57 °F 98% ENE  at  0 mph 0.00 in / hr 395 ft 2:55 AM EDT MADIS
Kirkpatrick Farms, Aldie, VA 59.2 °F 59 °F 99% NE  at  0.7 mph 0.00 in / hr 358 ft 3:15 AM EDT Normal
Colvin Run at Hunter Mill Rd (One Lane B, Vienna, VA 58.5 °F 56 °F 93% South  at  0.0 mph 0.00 in / hr 295 ft 3:25 AM EDT Normal  
Lake Fairfax, Vienna, VA 58.7 °F 57 °F 94% SSE  at  0.0 mph 0.00 in / hr 275 ft 3:27 AM EDT Rapid Fire
APRSWXNET Reston VA , Herndon, VA 59 °F 58 °F 95% ENE  at  0 mph 0.00 in / hr 400 ft 3:02 AM EDT MADIS
Would you like to share your weather data with the rest of the world? Add Your Weather Station!