Herndon, VA

6:59 AM EDT on June 20, 2013 (GMT -0400)
Elev: 341 ft
Lon: 77.4° W
Lat: 39.0° N
Source
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Tropical Weather: Tropical Storm Barry (North Atlantic) Tropical Storm Leepi (Western Pacific)
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Weather Summary
Kari Kiefer
Weather Underground Forecast for Thursday, June 20, 2013. Messy weather is expected in the northern part of the country on Thursday as a strong storm moves through the Intermountain West and into the Northern Plains. Heavy morning rain is anticipated near the Canadian border from Washington through Montana. As the day progresses, however, this precipitation will progress northward into Canada. Meanwhile, a Pacific low pressure trough will move into the Pacific Northwest, bringing another round of wet weather to Washington and Oregon.

Farther to the east, heavy rain and thunderstorms will move through the Dakotas to the Upper Midwest. This rain will increase in intensity throughout the day, potentially producing some severe thunderstorms. Residents in the Dakotas and Minnesota should monitor local weather conditions and be prepared to take precautions to protect life and property.

Meanwhile, scattered showers and thunderstorms will return to the Southeast and Florida, but ehse thunderstorms will be typical for this time of year.

A high pressure system over the Ohio Valley and Northeast will bring dry conditions to the area, while the Southwest will be dry and warm once again.

The Northeast will rise into the 70s and 80s, while the Southeast will see temperatures in the 90s and 100s. The Southern Plains and Southwest will also rise into the 90s and 100s, while the Northwest will see temperatures in the 60s and 70s.
Weather Underground Forecast for Thursday, June 20, 2013. Messy weather is expected in the northern part of the country on Thursday as a strong storm moves through the Intermountain West and into the Northern Plains. Heavy morning rain is anticipated near the Canadian border from Washington through Montana. As the day progresses, however, this precipitation will progress northward into Canada. Meanwhile, a Pacific low pressure trough will move into the Pacific Northwest, bringing another round of wet weather to Washington and Oregon.

Farther to the east, heavy rain and thunderstorms will move through the Dakotas to the Upper Midwest. This rain will increase in intensity throughout the day, potentially producing some severe thunderstorms. Residents in the Dakotas and Minnesota should monitor local weather conditions and be prepared to take precautions to protect life and property.

Meanwhile, scattered showers and thunderstorms will return to the Southeast and Florida, but ehse thunderstorms will be typical for this time of year.

A high pressure system over the Ohio Valley and Northeast will bring dry conditions to the area, while the Southwest will be dry and warm once again.

The Northeast will rise into the 70s and 80s, while the Southeast will see temperatures in the 90s and 100s. The Southern Plains and Southwest will also rise into the 90s and 100s, while the Northwest will see temperatures in the 60s and 70s.
More News Articles

Herndon Weather at a Glance

Updated 6:15 AM EDT
Elevation
339 ft
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Now
Overcast
Overcast
Temperature
65 °F
Feels Like 65 °F
Wind(mph)
4
Sunrise / Set
5:44 AM
8:38 PM
Moon
Waxing Gibbous
Today
Clear 81 °F
Clear
Tonight
Clear 57 °F
Clear
Tomorrow
Partly Cloudy 82 | 57 °F
Partly Cloudy
Saturday
Partly Cloudy 86 | 61 °F
Partly Cloudy
Sunday
Partly Cloudy 90 | 64 °F
Partly Cloudy
Monday
Partly Cloudy 90 | 70 °F
Partly Cloudy
Today is forecast to be Warmer than yesterday.
Conditions
Pressure
30.23 in
Visibility
1.0 miles
Clouds
Overcast 300 ft
Moisture
Humidity
90%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KIAD 201052Z 19004KT 1SM BR OVC003 18/18 A3024 RMK AO2 SFC VIS 2 SLP237 T01830178
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
65 °F
73,73,71,68,67,63,64,62,62,63,64,65,65
Dew Point
62 °F
Wind
Speed / Dir
4 mph from SE
Wind Gust
6.0 mph
Health
UV
0 out of 16
Pollen
4.40 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Thursday
clear Clear in the morning, then partly cloudy. High of 81F. Winds from the South at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 57F. Winds less than 5 mph.
Friday
partlycloudy Clear in the morning, then partly cloudy. High of 82F. Winds from the SSE at 5 to 10 mph.
Friday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 57F. Winds less than 5 mph.
Saturday
partlycloudy Partly cloudy. High of 86F. Winds from the South at 5 to 10 mph.
Saturday Night
nt_partlycloudy Partly cloudy in the evening, then clear. Low of 61F. Winds from the SSW at 5 to 10 mph.
Sunday
partlycloudy Clear in the morning, then partly cloudy. High of 90F. Winds from the South at 5 to 10 mph.
Sunday Night
nt_clear Clear. Low of 64F. Winds from the South at 5 to 10 mph.
Monday
partlycloudy Clear in the morning, then partly cloudy. High of 90F. Winds from the SSW at 5 to 10 mph.
Monday Night
nt_clear Clear. Low of 70F. Winds from the South at 5 to 10 mph shifting to the WSW after midnight.
Tuesday
partlycloudy Partly cloudy with a chance of a thunderstorm. High of 93F. Winds less than 5 mph. Chance of rain 20%.
Tuesday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 72F. Winds less than 5 mph. Chance of rain 30%.
Wednesday
chancetstorms Overcast with a chance of a thunderstorm. High of 93F with a heat index of 104F. Winds less than 5 mph. Chance of rain 40% with rainfall amounts near 0.2 in. possible.
Wednesday Night
nt_mostlycloudy Mostly cloudy with a chance of a thunderstorm. Low of 72F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.
Thursday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 91F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.
Thursday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 70F. Winds less than 5 mph. Chance of rain 40%.
Friday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 86F. Winds less than 5 mph. Chance of rain 50%.
Friday Night
nt_partlycloudy Clear. Low of 70F. Winds less than 5 mph.
Saturday
chancetstorms Clear with a chance of a thunderstorm. High of 91F. Winds less than 5 mph. Chance of rain 40%.
Saturday Night
nt_partlycloudy Clear. Low of 70F. Winds less than 5 mph.
Sunday
chancetstorms Clear with a chance of a thunderstorm. High of 88F. Winds less than 5 mph. Chance of rain 40%.
Sunday Night
nt_clear Clear with a chance of a thunderstorm. Low of 70F. Winds less than 5 mph. Chance of rain 20%.
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Herndon Weather Forecast

View Calendar 10-Day Forecast for Herndon Weather Station KVAHERND8

Thursday, 20
Clear
81 | 57 °F
Clear
Chance of
Precipitation
10%
Friday, 21
Partly Cloudy
82 | 57 °F
Partly Cloudy
Chance of
Precipitation
10%
Saturday, 22
Partly Cloudy
86 | 61 °F
Partly Cloudy
Chance of
Precipitation
10%
Sunday, 23
Partly Cloudy
90 | 64 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 24
Partly Cloudy
90 | 70 °F
Partly Cloudy
Chance of
Precipitation
0%
Tuesday, 25
Chance of a Thunderstorm
93 | 72 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Wednesday, 26
Chance of a Thunderstorm
93 | 72 °F
Chance of T-storms
Chance of
Precipitation
40%
Thursday, 27
Chance of a Thunderstorm
91 | 70 °F
Chance of T-storms
Chance of
Precipitation
40%
Friday, 28
Chance of a Thunderstorm
86 | 70 °F
Chance of T-storms
Chance of
Precipitation
50%
Saturday, 29
Chance of a Thunderstorm
91 | 70 °F
Chance of T-storms
Chance of
Precipitation
40%
Source: BestForecast at 3:50 AM EDT on June 20, 2013
Descriptive Forecast
Thursday
clear Clear in the morning, then partly cloudy. High of 81F. Winds from the South at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 63 | 56 75 | 56 75 | 56 64 | 55
Wind 6 mph SSE 7 mph South 9 mph SSE 4 mph SE
Humidity 82% 52% 50% 73%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 0% 19% 17% 19%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:44 AM
8:38 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.53], Average RMSE [2.17]
The National Weather Service forecast quality is good. MaxT RMSE [1.83], Average RMSE [2.27] : Use NWS
Source: BestForecast at 3:50 AM EDT on June 20, 2013
Descriptive Forecast
Friday
partlycloudy Clear in the morning, then partly cloudy. High of 82F. Winds from the SSE at 5 to 10 mph.
Friday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 59 | 56 76 | 55 77 | 56 66 | 58
Wind 2 mph SSE 6 mph SE 7 mph SE 4 mph SSE
Humidity 90% 48% 47% 76%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 17% 22% 31% 12%
Conditions Clear Clear Partly Cloudy Clear
Sunrise & Sunset
5:44 AM
8:38 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.45], Average RMSE [1.82]
The National Weather Service forecast quality is good. MaxT RMSE [1.91], Average RMSE [2.35] : Use NWS
Source: BestForecast at 3:50 AM EDT on June 20, 2013
Descriptive Forecast
Saturday
partlycloudy Partly cloudy. High of 86F. Winds from the South at 5 to 10 mph.
Saturday Night
nt_partlycloudy Partly cloudy in the evening, then clear. Low of 61F. Winds from the SSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 58 78 | 63 80 | 64 70 | 57
Wind 1 mph ESE 5 mph South 3 mph South 6 mph South
Humidity 94% 59% 57% 65%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 24% 28% 23% 10%
Conditions Fog Partly Cloudy Clear Clear
Sunrise & Sunset
5:44 AM
8:38 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.96], Average RMSE [1.84]
The National Weather Service forecast quality is good. MaxT RMSE [2.38], Average RMSE [2.76] : Use NWS
Source: BestForecast at 3:50 AM EDT on June 20, 2013
Descriptive Forecast
Sunday
partlycloudy Clear in the morning, then partly cloudy. High of 90F. Winds from the South at 5 to 10 mph.
Sunday Night
nt_clear Clear. Low of 64F. Winds from the South at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 64 | 58 83 | 63 87 | 63 74 | 64
Wind 5 mph SW 6 mph South 8 mph SSE 6 mph South
Humidity 80% 49% 44% 71%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 44% 11%
Conditions Clear Clear Partly Cloudy Clear
Sunrise & Sunset
5:44 AM
8:38 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.47], Average RMSE [2.31]
The National Weather Service forecast quality is fair. MaxT RMSE [2.61], Average RMSE [2.56] : Use NWS
Source: BestForecast at 3:50 AM EDT on June 20, 2013
Descriptive Forecast
Monday
partlycloudy Clear in the morning, then partly cloudy. High of 90F. Winds from the SSW at 5 to 10 mph.
Monday Night
nt_clear Clear. Low of 70F. Winds from the South at 5 to 10 mph shifting to the WSW after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 67 | 63 85 | 67 82 | 68 75 | 65
Wind 5 mph SW 5 mph South 7 mph South 6 mph SSW
Humidity 88% 53% 61% 70%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 0% 22% 52% 0%
Conditions Clear Clear Partly Cloudy Clear
Sunrise & Sunset
5:45 AM
8:39 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.09], Average RMSE [2.22]
The National Weather Service forecast quality is fair. MaxT RMSE [2.67], Average RMSE [2.43] : Use NWS
Source: BestForecast at 3:50 AM EDT on June 20, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy with a chance of a thunderstorm. High of 93F. Winds less than 5 mph. Chance of rain 20%.
Tuesday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 72F. Winds less than 5 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 72 | 65 86 | 68 87 | 72 76 | 69
Wind 4 mph West 3 mph WNW 5 mph SSW 4 mph SW
Humidity 79% 55% 58% 76%
Chance of Precip. 0% 0% 20% 10%
Cloud Cover 0% 33% 81% 78%
Conditions Clear Partly Cloudy Chance of a Thunderstorm Mostly Cloudy
Sunrise & Sunset
5:45 AM
8:39 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.72], Average RMSE [2.50]
The National Weather Service forecast quality is fair. MaxT RMSE [3.25], Average RMSE [2.48] : Use NWS
Source: BestForecast at 3:50 AM EDT on June 20, 2013
Descriptive Forecast
Wednesday
chancetstorms Overcast with a chance of a thunderstorm. High of 93F with a heat index of 104F. Winds less than 5 mph. Chance of rain 40% with rainfall amounts near 0.2 in. possible.
Wednesday Night
nt_mostlycloudy Mostly cloudy with a chance of a thunderstorm. Low of 72F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 75 | 69 87 | 73 88 | 73 78 | 72
Wind 4 mph West 2 mph West 6 mph South 6 mph South
Humidity 80% 61% 59% 82%
Chance of Precip. 10% 10% 20% 10%
Cloud Cover 79% 94% 92% 78%
Conditions Mostly Cloudy Overcast Chance of a Thunderstorm Mostly Cloudy
Sunrise & Sunset
5:45 AM
8:39 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.60], Average RMSE [2.53]
The National Weather Service forecast quality is poor. MaxT RMSE [3.58], Average RMSE [2.87] : Use NWS
Source: BestForecast at 3:50 AM EDT on June 20, 2013
Descriptive Forecast
Thursday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 91F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.
Thursday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 70F. Winds less than 5 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 74 | 69 84 | 71 86 | 76 76 | 73
Wind 4 mph SW 6 mph SW 4 mph WSW 2 mph SSW
Humidity 82% 61% 73% 90%
Chance of Precip. 10% 0% 30% 10%
Cloud Cover 5% 59% 81% 80%
Conditions Clear Partly Cloudy Chance of a Thunderstorm Mostly Cloudy
Sunrise & Sunset
5:46 AM
8:39 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.06], Average RMSE [2.38]
Source: BestForecast at 3:50 AM EDT on June 20, 2013
Descriptive Forecast
Friday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 86F. Winds less than 5 mph. Chance of rain 50%.
Friday Night
nt_partlycloudy Clear. Low of 70F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 72 | 70 83 | 70 80 | 72 75 | 69
Wind 2 mph SW 2 mph SW 2 mph SSW 2 mph SW
Humidity 94% 63% 75% 84%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 72% 59% 41% 26%
Conditions Fog Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:46 AM
8:39 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.16], Average RMSE [2.68]
Source: BestForecast at 3:50 AM EDT on June 20, 2013
Descriptive Forecast
Saturday
chancetstorms Clear with a chance of a thunderstorm. High of 91F. Winds less than 5 mph. Chance of rain 40%.
Saturday Night
nt_partlycloudy Clear. Low of 70F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 73 | 66 83 | 66 85 | 68 75 | 66
Wind 2 mph WSW 1 mph WSW 1 mph SSW 2 mph SSW
Humidity 79% 55% 54% 79%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 16% 15% 24% 23%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:46 AM
8:39 PM
Source: BestForecast at 3:50 AM EDT on June 20, 2013
Descriptive Forecast
Sunday
chancetstorms Clear with a chance of a thunderstorm. High of 88F. Winds less than 5 mph. Chance of rain 40%.
Sunday Night
nt_clear Clear with a chance of a thunderstorm. Low of 70F. Winds less than 5 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 73 | 66 84 | 67 82 | 71 72 | 70
Wind 1 mph WSW 1 mph WSW 1 mph South 2 mph SSW
Humidity 77% 57% 66% 93%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 12% 11% 20% %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
Weather History & Almanac
June 20, 2013 Max Temp Min Temp
Normal (KIAD) 85 °F 63 °F
Record (KIAD) 97 °F (1964) 48 °F (2000)
Yesterday 77 °F 63 °F
Yesterday's Cooling Degree Days: 5
Weather History for Herndon, VA
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
Thursday Moderate
OZONE
Thursday Good
PM2.5
Friday Moderate
OZONE
Friday Moderate
PM2.5
Saturday Moderate
OZONE
Saturday Moderate
PM2.5
Coastal Water Temperatures
Place Temperature
Washington, DC 75.9 °F
Baltimore, MD 77.0 °F
Solomons Island, MD 75.0 °F
Marine Forecast
Astronomy
Jun. 20, 2013 Rise Set
Actual Time 5:44 AM EDT 8:38 PM EDT
Civil Twilight 5:11 AM EDT 9:10 PM EDT
Nautical Twilight 4:31 AM EDT 9:51 PM EDT
Astronomical Twilight 3:44 AM EDT 10:37 PM EDT
Moon 5:39 PM EDT 3:07 AM EDT
Length Of Visible Light 15h 58m
Length of Day
14h 54m
Tomorrow will be 0m 1s longer.
Waxing Gibbous, 87% of the Moon is Illuminated
Today
Waxing Gibbous
Jun 23
Full
Jun 30
Last Quarter
Jul 8
New
Jul 15
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
68 °F
Quantico
66 °F
Louisa
66 °F
Galax
66 °F
Lynchburg
66 °F
Martinsville
55 °F
West Point
56 °F
Tappahannock
57 °F
Melfa
57 °F
Wakefield
59 °F
Winchester
Record Extremes
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
Dulles Airport 65 °F Overcast 6:52 AM EDT
Leesburg 64 °F Overcast 6:55 AM EDT
Gaithersburg 64 °F Overcast 6:55 AM EDT
Manassas 64 °F Mostly Cloudy 6:55 AM EDT
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Flight To ETA Status
UCA5020
State College, PA 		KIAD 06:46AM On Time
ASQ6176
Charleston, WV 		KIAD 06:50AM On Time
TCF3528
Columbus, OH 		KIAD 06:52AM On Time
RPA4882
Raleigh/Durham, NC 		KIAD 06:54AM On Time
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Type Condition
Flight Rule: LIFR (KIAD)
Wind Speed: 4.0 kts.
Wind Dir: 141° (SE)
Ceiling: 300 ft

METAR KIAD 201052Z 19004KT 1SM BR OVC003 18/18 A3024 RMK AO2 SFC VIS 2 SLP237 T01830178

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Nearby Events
Event Date Forecast
Jason Masi 7:00 PM EDT
2013-06-20		 Partly Cloudy, 76°F
Parallel Wine Bistro (Solo) 7:00 PM EDT
2013-06-20		 Partly Cloudy, 76°F
Round Mountain 7:00 PM EDT
2013-06-25		 Chance of a Thunderstorm, 84°F
The Four Tops 8:00 PM EDT
2013-06-27		 Chance of a Thunderstorm, 82°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Pirates vs. Reds 12:35 PM EDT on June 20, 2013 Clear, 85 °F
White Sox vs. Twins 5:10 PM UTC on June 20, 2013 Chance of a Thunderstorm, 81 °F
Rockies vs. Nationals 7:05 PM EDT on June 20, 2013 Clear, 76 °F
Rockies vs. Nationals 7:05 PM EDT on June 21, 2013 Clear, 76 °F
Event Date Forecast
Girona vs. Almería 8:00 PM CEST on June 22, 2013 Scattered Clouds, High 77° F/ 25° C
San Jose vs. D.C. 7:00 PM EDT on June 22, 2013 Partly Cloudy, 79 °F
Vancouver vs. D.C. 7:00 PM EDT on June 29, 2013 Average High 87° F/ 30° C
New England vs. D.C. 7:00 PM EDT on July 27, 2013 Average High 88° F/ 31° C
Event Date Forecast
Toyota/Save Mart 350 12:19 PM PDT on June 23, 2013 Clear, 68 °F
Quaker State 400 7:45 PM EDT on June 29, 2013 Average High 84° F/ 28° C
Event Date Forecast
Travelers Championship 8:30 AM EDT on June 20, 2013 Clear, 61 °F
Travelers Championship 8:30 AM EDT on June 21, 2013 Clear, 63 °F
AT&T National 8:30 AM EDT on June 27, 2013 Average High 87° F/ 30° C
AT&T National 8:30 AM EDT on June 28, 2013 Average High 86° F/ 29° C
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Herndon Weather Stations
Station Location Temp. Dew Point Humidity Wind Precipitation Elevation Updated Type Website
VADOT Site_G, Herndon, VA 65 °F 62 °F 90% SE  at  4 mph 0.00 in / hr 339 ft 6:15 AM EDT MADIS
APRSWXNET Reston VA , Herndon, VA 65 °F 63 °F 94% West  at  0 mph 0.00 in / hr 454 ft 6:33 AM EDT MADIS
Falls Brook, Herndon, VA 64.7 °F 64 °F 97% SSE  at  0.0 mph 0.00 in / hr 280 ft 6:57 AM EDT Normal  
Shaker Woods, Herndon, VA 65.8 °F 65 °F 97% NW  at  0.7 mph 0.00 in / hr 387 ft 6:58 AM EDT Rapid Fire  
APRSWXNET Reston VA , Herndon, VA 65 °F 64 °F 95% East  at  0 mph 0.00 in / hr 400 ft 6:26 AM EDT MADIS
APRSWXNET Great Falls VA , Sterling, VA 64 °F 63 °F 98% NNE  at  0 mph 0.00 in / hr 321 ft 6:32 AM EDT MADIS
Chantilly Highlands, Herndon, VA 65.7 °F 65 °F 99% South  at  3.1 mph 0.00 in / hr 340 ft 6:58 AM EDT Rapid Fire  
Colvin Run at Hunter Mill Rd (One Lane B, Vienna, VA 64.0 °F 62 °F 94% NNW  at  0.0 mph 0.00 in / hr 295 ft 6:55 AM EDT Normal  
Cedar Cove Cluster, Reston, VA 65.8 °F 63 °F 92% NE  at  0.0 mph 0.00 in / hr 350 ft 6:57 AM EDT Rapid Fire  
Lake Fairfax, Vienna, VA 64.7 °F 63 °F 94% South  at  0.0 mph 0.00 in / hr 275 ft 6:59 AM EDT Rapid Fire
NonFedAWOS WASHINGTON DULLES , Dulles, VA 65 °F 64 °F 97% South  at  5 mph 0.00 in / hr 1023 ft 5:52 AM EDT MADIS
Great Falls VA, Great Falls, VA 64.0 °F 64 °F 100% South  at  1.0 mph 0.00 in / hr 380 ft 6:55 AM EDT Normal
Weatherscience.net, Potomac Falls, VA 65.1 °F 64 °F 98% East  at  0.0 mph 0.00 in / hr 276 ft 6:58 AM EDT Rapid Fire
Hawk Ridge Subdivision, Reston, VA 64.3 °F 64 °F 99% NNW  at  0.0 mph 0.00 in / hr 300 ft 6:50 AM EDT Normal
Fox Mill, Herndon, VA 65.8 °F 28 °F 24% NNW  at  0.0 mph 0.00 in / hr 383 ft 6:58 AM EDT Rapid Fire  
Gracie's Window in FranklinGlen, Fairfax, VA 64.4 °F 26 °F 24% North  at  0.0 mph 0.00 in / hr 365 ft 6:39 AM EDT Rapid Fire  
APRSWXNET Great Falls V, Great Falls, VA 64 °F 62 °F 94% West  at  0 mph 0.00 in / hr 296 ft 6:29 AM EDT MADIS
Chantilly, VA 65.8 °F 66 °F 99% North  at  0.0 mph 0.00 in / hr 308 ft 6:55 AM EDT Normal  
Ashburn Village, Ashburn, VA 64.6 °F 64 °F 97% ENE  at  0.0 mph - / hr 320 ft 6:55 AM EDT Normal  
Oakton, Oakton, VA 64.2 °F 63 °F 97% ESE  at  0.0 mph 0.00 in / hr 455 ft 6:30 AM EDT Normal  
Brookfield, Chantilly, VA 68.2 °F 48 °F 49% SSW  at  0.0 mph 0.00 in / hr 260 ft 6:58 AM EDT Normal  
VADOT Site_C, Oakton, VA 66 °F 63 °F 89% North  at  - 0.00 in / hr 290 ft 6:18 AM EDT MADIS
Wind Power Cube, Chantilly, VA 65.3 °F 65 °F 99% South  at  3.8 mph 0.00 in / hr 203 ft 6:59 AM EDT Normal  
Ashburn Village, Ashburn, VA 64.9 °F 62 °F 91% ESE  at  3.1 mph 0.00 in / hr 272 ft 6:54 AM EDT Normal  
Ashburn Village 1, Ashburn, VA 64.6 °F 64 °F 97% SSE  at  1.0 mph 0.00 in / hr 279 ft 6:58 AM EDT Rapid Fire  
VADOT Site_E, Oakton, VA 65 °F 65 °F 99% North  at  - 0.00 in / hr 353 ft 6:11 AM EDT MADIS
Brambleton, Brambleton, VA 64.7 °F 64 °F 96% ESE  at  1.0 mph 0.00 in / hr 310 ft 6:58 AM EDT Rapid Fire  
Fair Lakes / AJ4YI, Fairfax, VA 65.5 °F 65 °F 97% SSE  at  0.0 mph 0.00 in / hr 420 ft 6:59 AM EDT Rapid Fire  
Ridings at Blue Springs, Chantilly, VA 64.9 °F 63 °F 95% SSE  at  0.0 mph 0.00 in / hr 303 ft 6:56 AM EDT Normal
Wolf Trap Woods, Vienna, VA 64.4 °F 64 °F 99% WNW  at  0.0 mph 0.00 in / hr 0 ft 6:44 AM EDT Normal  
Beulah-Wolf Trap, Vienna, VA 64.8 °F 63 °F 94% SSE  at  0.0 mph 0.00 in / hr 430 ft 6:49 AM EDT Normal  
NE Vienna, Vienna, VA 65.0 °F 63 °F 94% SE  at  0.0 mph - / hr 417 ft 6:56 AM EDT Normal  
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