Rockville, MD

8:07 PM EST on February 09, 2012 (GMT -0500)
Elev: 459 ft
Lon: 77.2° W
Lat: 39.1° N
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Tropical Weather: Tropical Cyclone Twelve (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Weather Underground midday recap for Thursday, February 09, 2012.

Areas of active weather developed over the West on Thursday, while Texas saw a mix of snow, freezing rain, and rain. A trough of low pressure moved off the Southern Rockies and into the Southern Plains. This allowed for snow showers to end over New Mexico and moved into northern Texas and Oklahoma. Snowfall accumulation in northern New Mexico ranged from 1 to 3 inches, while the panhandle of Texas saw an inch of snow and ice accumulation up to a tenth of an inch. Winter weather advisories have been issued for parts of the Southern Plains as this system created dangerous road and travel conditions. To the south, onshore flow from the Gulf of Mexico pushed moist air into eastern Texas. This kicked up scattered showers and thunderstorms from northeastern Mexico and through southeastern Texas. These storms have not yet turned severe.

In the West, a low pressure system in the Gulf of Alaska continued pushing a warm front into the Pacific Northwest. Temperatures increased as this system moved onshore, which increased snow levels across the Washington Cascades. Precipitation remained as rain showers in most areas. Rainfall totals ranged around 1 inch, with heaviest rainfall totals up to 1.12 inches in Chehalis, Washington.

Back East, a ridge of high pressure covered the Mississippi River Valley and Eastern US. This pushed cool and dry air in from Canada and created sunny skies with brisk conditions. High temperatures ranged in the 30s across the Great Lakes region, while the Northeast and Mid-Atlantic states reached into the upper 40s.
Weather Underground midday recap for Thursday, February 09, 2012.

Areas of active weather developed over the West on Thursday, while Texas saw a mix of snow, freezing rain, and rain. A trough of low pressure moved off the Southern Rockies and into the Southern Plains. This allowed for snow showers to end over New Mexico and moved into northern Texas and Oklahoma. Snowfall accumulation in northern New Mexico ranged from 1 to 3 inches, while the panhandle of Texas saw an inch of snow and ice accumulation up to a tenth of an inch. Winter weather advisories have been issued for parts of the Southern Plains as this system created dangerous road and travel conditions. To the south, onshore flow from the Gulf of Mexico pushed moist air into eastern Texas. This kicked up scattered showers and thunderstorms from northeastern Mexico and through southeastern Texas. These storms have not yet turned severe.

In the West, a low pressure system in the Gulf of Alaska continued pushing a warm front into the Pacific Northwest. Temperatures increased as this system moved onshore, which increased snow levels across the Washington Cascades. Precipitation remained as rain showers in most areas. Rainfall totals ranged around 1 inch, with heaviest rainfall totals up to 1.12 inches in Chehalis, Washington.

Back East, a ridge of high pressure covered the Mississippi River Valley and Eastern US. This pushed cool and dry air in from Canada and created sunny skies with brisk conditions. High temperatures ranged in the 30s across the Great Lakes region, while the Northeast and Mid-Atlantic states reached into the upper 40s.
Rockville Weather at a Glance
Updated 8:05 PM EST
Elevation
451 ft
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Now
Clear
Clear
Temperature
35.9 °F
Feels Like 36 °F
Wind(mph)
0.0
Sunrise / Set
7:07 AM
5:38 PM
Moon
Waning Gibbous
Tonight
Clear 27 °F
Clear
Tomorrow
Partly Cloudy 49 °F
Partly Cloudy
Tomorrow Night
Snow 29 °F
Snow
80% chance of precipitation
Saturday
Chance of Snow 38 | 20 °F
Chance of Snow
30% chance of precipitation
Sunday
Partly Cloudy 31 | 22 °F
Partly Cloudy
Monday
Clear 43 | 29 °F
Clear
Tomorrow is forecast to be Warmer than today.
Conditions
Pressure
30.12 in
Visibility
10.0 miles
Clouds
Clear -
Moisture
Humidity
52%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KGAI 100055Z AUTO 00000KT 10SM CLR 00/M06 A3021 RMK AO1
Don't speak METAR? Read our FAQ.
Weather Radio
Temperature
Windchill
36 °F
Dew Point
20 °F
Wind
Speed / Dir
Calm
Wind Gust
0.0 mph
Health
UV
0 out of 16
Pollen
2.60 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Sporadic
View Flu Map
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Regional Forecast for Montgomery
Tonight
nt_sunny Mostly clear this evening...then becoming partly cloudy. Lows in the mid 20s. West winds around 5 mph.
Friday
sunny Sunny in the morning...then becoming mostly cloudy. Highs in the upper 40s. South winds around 5 mph...becoming southwest around 5 mph in the afternoon.
Friday Night
nt_snow Snow and rain...mainly after midnight. Snow accumulation around an inch. Lows around 30. North winds around 5 mph. Chance of precipitation 80 percent.
Saturday
snow Partly sunny in the morning...then mostly cloudy with a chance of rain and snow showers in the afternoon. Highs in the upper 30s. Northwest winds 15 to 20 mph. Gusts up to 35 mph in the afternoon. Chance of precipitation 30 percent.
Saturday Night
nt_partlycloudy Partly cloudy in the evening...then clearing. Brisk with lows around 20. Northwest winds 15 to 25 mph.
Sunday
partlycloudy Mostly sunny and brisk. Highs in the lower 30s.
Sunday Night
nt_sunny Mostly clear. Lows in the lower 20s.
Monday
sunny Sunny. Highs in the lower 40s.
Monday Night
nt_cloudy Mostly cloudy. Lows in the upper 20s.
Tuesday
cloudy Mostly cloudy. Highs in the upper 40s.
Tuesday Night
nt_cloudy Mostly cloudy. Lows in the lower 30s.
Wednesday
partlysunny Partly sunny. Highs in the upper 40s.
Wednesday Night
nt_partlycloudy Partly cloudy. Lows in the lower 30s.
Thursday
partlysunny Partly sunny. Highs around 50.
Source: NWS at 6:30 PM EST on February 9, 2012
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Forecast
View Calendar 7-Day Weather Forecast for 20847
Thursday, 9
Partly Cloudy
45 | 27 °F
Partly Cloudy
Chance of
Precipitation
0%
Friday, 10
Partly Cloudy
49 | 29 °F
Partly Cloudy
Chance of
Precipitation
40%
Saturday, 11
Chance of Snow
38 | 20 °F
Chance of Snow
Chance of
Precipitation
30%
Sunday, 12
Partly Cloudy
31 | 22 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 13
Clear
43 | 29 °F
Clear
Chance of
Precipitation
0%
Tuesday, 14
Mostly Cloudy
47 | 31 °F
Mostly Cloudy
Chance of
Precipitation
10%
Wednesday, 15
Partly Cloudy
49 | 32 °F
Partly Cloudy
Chance of
Precipitation
10%
Thursday, 16
Chance of Rain
50 | NA
Chance of Rain
Chance of
Precipitation
20%
Source: NWS at 6:30 PM EST on February 9, 2012
Regional Forecast for Montgomery
Tonight
nt_sunny Mostly clear this evening...then becoming partly cloudy. Lows in the mid 20s. West winds around 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 30 | 23 41 | 20 40 | 19 33 | 20
Wind 9 mph NW 7 mph NW 3 mph WNW 0 mph WNW
Humidity 73% 43% 43% 59%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 68% 3% 6% 6%
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
7:07 AM
5:38 PM
Source: NWS at 6:30 PM EST on February 9, 2012
Regional Forecast for Montgomery
Friday
sunny Sunny in the morning...then becoming mostly cloudy. Highs in the upper 40s. South winds around 5 mph...becoming southwest around 5 mph in the afternoon.
Friday Night
nt_snow Snow and rain...mainly after midnight. Snow accumulation around an inch. Lows around 30. North winds around 5 mph. Chance of precipitation 80 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 21 43 | 23 42 | 27 36 | 31
Wind 0 mph South 4 mph South 3 mph SSW 4 mph North
Humidity 65% 45% 55% 83%
Chance of Precip. 0% 40% 40% 80%
Cloud Cover 10% 20% 69% 100%
Conditions Clear Clear Partly Cloudy Snow
Sunrise & Sunset
7:06 AM
5:39 PM
Source: NWS at 6:30 PM EST on February 9, 2012
Regional Forecast for Montgomery
Saturday
snow Partly sunny in the morning...then mostly cloudy with a chance of rain and snow showers in the afternoon. Highs in the upper 30s. Northwest winds 15 to 20 mph. Gusts up to 35 mph in the afternoon. Chance of precipitation 30 percent.
Saturday Night
nt_partlycloudy Partly cloudy in the evening...then clearing. Brisk with lows around 20. Northwest winds 15 to 25 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 31 37 | 26 33 | 15 26 | 10
Wind 6 mph NNW 11 mph NW 19 mph NW 16 mph NW
Humidity 99% 67% 48% 49%
Chance of Precip. 80% 30% 30% 10%
Cloud Cover 98% 57% 75% 26%
Conditions Chance of Snow Partly Cloudy Chance of Snow Partly Cloudy
Sunrise & Sunset
7:05 AM
5:40 PM
Source: NWS at 6:30 PM EST on February 9, 2012
Regional Forecast for Montgomery
Sunday
partlycloudy Mostly sunny and brisk. Highs in the lower 30s.
Sunday Night
nt_sunny Mostly clear. Lows in the lower 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 8 28 | 9 28 | 10 25 | 11
Wind 13 mph WNW 18 mph WNW 11 mph WNW 7 mph WNW
Humidity 54% 43% 45% 53%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 21% 38% 42% 32%
Conditions Clear Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:04 AM
5:41 PM
Source: NWS at 6:30 PM EST on February 9, 2012
Regional Forecast for Montgomery
Monday
sunny Sunny. Highs in the lower 40s.
Monday Night
nt_cloudy Mostly cloudy. Lows in the upper 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 25 | 11 38 | 14 38 | 16 35 | 19
Wind 6 mph WNW 8 mph WNW 3 mph West 1 mph WSW
Humidity 52% 38% 41% 54%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 9% 8% 17% 69%
Conditions Clear Clear Clear Partly Cloudy
Sunrise & Sunset
7:03 AM
5:43 PM
Source: NWS at 6:30 PM EST on February 9, 2012
Regional Forecast for Montgomery
Tuesday
cloudy Mostly cloudy. Highs in the upper 40s.
Tuesday Night
nt_cloudy Mostly cloudy. Lows in the lower 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 32 | 20 43 | 26 41 | 29 37 | 31
Wind 0 mph SW 5 mph South 3 mph SW 2 mph SW
Humidity 62% 51% 61% 78%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 78% 90% 77% 71%
Conditions Mostly Cloudy Overcast Mostly Cloudy Chance of Rain
Sunrise & Sunset
7:03 AM
5:43 PM
Source: NWS at 6:30 PM EST on February 9, 2012
Regional Forecast for Montgomery
Wednesday
partlysunny Partly sunny. Highs in the upper 40s.
Wednesday Night
nt_partlycloudy Partly cloudy. Lows in the lower 30s.
Thursday
partlysunny Partly sunny. Highs around 50.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 34 | 29 45 | 31 44 | 31 37 | 29
Wind 2 mph West 6 mph WNW 5 mph WNW 2 mph NW
Humidity 84% 58% 63% 71%
Chance of Precip. 20% 20% 10% 10%
Cloud Cover 71% 61% 69% 60%
Conditions Chance of Rain Partly Cloudy Partly Cloudy Chance of Rain
Sunrise & Sunset
7:03 AM
5:43 PM
Source: NWS at 6:30 PM EST on February 9, 2012
Regional Forecast for Montgomery
Thursday
partlysunny Partly sunny. Highs around 50.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 36 | 29 47 | 31 46 | 34 37 | 29
Wind 1 mph WNW 4 mph West 2 mph SW 2 mph NW
Humidity 75% 56% 63% 71%
Chance of Precip. 20% 20% 20% 10%
Cloud Cover 31% 43% 79% 60%
Conditions Chance of Rain Chance of Rain Chance of Rain Chance of Rain
Sunrise & Sunset
7:03 AM
5:43 PM
BestForecast (what's this?)
Nearby
History & Almanac
February 9, 2012 Max Temp Min Temp
Normal (KDCA) 45 °F 29 °F
Record (KDCA) 70 °F (2001) -7 °F (1899)
Yesterday 43 °F 37 °F
Yesterday's Heating Degree Days: 25
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
Coastal Water Temperatures
Place Temperature
Washington, DC 43.0 °F
Baltimore, MD 43.0 °F
Solomons Island, MD 43.0 °F
Astronomy
Feb. 09, 2012 Rise Set
Actual Time 7:07 AM EST 5:38 PM EST
Civil Twilight 6:40 AM EST 6:06 PM EST
Nautical Twilight 6:08 AM EST 6:37 PM EST
Astronomical Twilight 5:37 AM EST 7:08 PM EST
Moon 8:02 PM EST (2/9) 7:44 AM EST (2/9)
Length Of Visible Light 11h 26m
Length of Day
10h 30m
Tomorrow will be 2m 15s longer.
Waning Gibbous, 94% of the Moon is Illuminated
Today
Waning Gibbous
Feb 14
Last Quarter
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Today's Extremes
State Highs State Lows
46 °F
Salisbury
45 °F
Baltimore
19 °F
Oakland
21 °F
Hagerstown
24 °F
Westminster
26 °F
Gaithersburg
26 °F
Frederick
Source: NWS
Snow Depth
Station Depth Elevation
No new snow has been reported.
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Some pics of showers and storms that moved into South West Florida.
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Travel & Activities
Travel Planning
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Aviation
City Temp. Conditions Updated
Gaithersburg 32 °F Clear 7:55 PM EST
College Park 34 °F Clear 7:35 PM EST
Washington 42 °F Mostly Cloudy 7:52 PM EST
Dulles Airport 35 °F Overcast 7:52 PM EST
Flight To ETA Status
RPA3294
Indianapolis, IN
KDCA 08:01PM On Time
RPA3130
Columbus, OH
KDCA 08:01PM On Time
RPA3312
Jacksonville, FL
KDCA 08:02PM On Time
ASQ4183
Cleveland, OH
KDCA 08:05PM On Time
LRC580
San Salvador
KIAD 07:49PM On Time
CJC3855
State College, PA
KIAD 08:05PM On Time
SWA278
Chicago, IL
KIAD 08:05PM On Time
TAI580
San Salvador
KIAD 08:06PM On Time
Flight Tracker by FlightAware FlightAware
Type Condition
Flight Rule: VFR (KGAI)
Wind Speed: 0.0 kts.
Wind Dir: 243° (WSW)
Ceiling: Unlimited

METAR KGAI 100055Z AUTO 00000KT 10SM CLR 00/M06 A3021 RMK AO1

Nearby Events
Event Date Forecast
Baltimore Symphony Orchestra: A BSO Valentine 8:00 PM EST 2012-02-09 Clear, 32°F
The Elephant Man 8:00 PM EST 2012-02-09 Clear, 32°F
Leif Ove Andsnes in Recital 7:00 PM EST 2012-02-09 Clear, 34°F
The Experts Tell All: The Prenatal Series - 7 weeks, starts February 9 7:00 PM EST 2012-02-09 Clear, 34°F
Unplugged - SAW Songwriter Showcase - Electric Maid - Takoma Park 8:00 PM EST 2012-02-09 Clear, 32°F
John Pizzarelli 7:00 PM EST 2012-02-10 Chance of Rain, 39°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Budweiser Shootout 8:29 PM EST on February 18, 2012 Average High 71° F/ 21° C
Gatorade Duel 1 2:19 PM EST on February 23, 2012 Average High 70° F/ 21° C
Event Date Forecast
AT&T Pebble Beach National Pro-Am 8:30 AM PST on February 10, 2012 Partly Cloudy, 45 °F
AT&T Pebble Beach National Pro-Am 8:30 AM PST on February 11, 2012 Chance of Rain, 45 °F
AT&T National 8:30 AM EDT on June 28, 2012 Average High 86° F/ 29° C
AT&T National 8:30 AM EDT on June 29, 2012 Average High 87° F/ 30° C
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Woodley Gardens, Rockville, MD 35.9 °F 36 °F 20 °F 52% WSW  at  0.0 mph 0.00 in / hr 451 ft 8:05 PM EST Normal
Potomac Woods, Rockville, MD 36.9 °F 37 °F 19 °F 48% SW  at  0.0 mph 0.00 in / hr 453 ft 8:07 PM EST Rapid Fire  
Avalon at Traville, North Potomac, MD 34.9 °F 35 °F 25 °F 67% WSW  at  0.0 mph 0.00 in / hr 422 ft 8:07 PM EST Rapid Fire  
Flower Valley, Rockville, MD 32.7 °F 33 °F 22 °F 63% West  at  0.0 mph 0.00 in / hr 347 ft 8:02 PM EST Normal  
MDDOT I-270 @ I-370, Gaithersburg, MD 38 °F 38 °F 13 °F 35% WSW  at  0 mph 0.00 in / hr 449 ft 7:50 PM EST MADIS
Muddy Branch Park, Gaithersburg, MD 33.8 °F 34 °F 23 °F 64% ENE  at  0.0 mph 0.00 in / hr 394 ft 8:07 PM EST Rapid Fire  
APRSWXNET Bethesda MD , Washington, DC 36 °F 36 °F 22 °F 56% WNW  at  0 mph 0.00 in / hr 403 ft 7:48 PM EST MADIS
Kentlands, Gaithersburg, MD 40.8 °F 41 °F 24 °F 50% South  at  0.0 mph 0.00 in / hr 380 ft 8:07 PM EST Rapid Fire  
Cherrywood, Olney, MD 30.9 °F 31 °F 24 °F 74% WSW  at  0.0 mph 0.00 in / hr 522 ft 8:05 PM EST Normal  
Gaithersburg, MD 29.3 °F 29 °F 23 °F 77% WSW  at  0.0 mph 0.00 in / hr 467 ft 8:00 PM EST Normal  
Montgomery Village, MD 34.7 °F 35 °F 15 °F 44% North  at  - - / hr 350 ft 8:07 PM EST Rapid Fire
Longhorn, Gaithersburg, MD 34.0 °F 34 °F 20 °F 55% WSW  at  0.0 mph 0.00 in / hr 432 ft 8:05 PM EST Normal
Kensington, Kensington, MD 36.3 °F 36 °F 26 °F 57% South  at  0.0 mph 0.00 in / hr 381 ft 8:05 PM EST Normal  
Wheaton, Silver Spring, MD 34.9 °F 35 °F 22 °F 58% NNW  at  0.0 mph 0.00 in / hr 350 ft 8:07 PM EST Rapid Fire  
MDDOT I-495 @ Connecticut Ave, Bethesda, MD 36 °F 36 °F 22 °F 58% WSW  at  0 mph 0.00 in / hr 230 ft 7:51 PM EST MADIS
Manor Ridge, Gaithersburg, MD 31.2 °F 31 °F 20 °F 63% NW  at  0.0 mph 0.00 in / hr 575 ft 8:07 PM EST Rapid Fire
North Springbrook, Colesville, MD 31.0 °F 31 °F 26 °F 83% WNW  at  0.0 mph 0.00 in / hr 315 ft 8:06 PM EST Rapid Fire  
Cloppers Mill East, Germantown, MD 30.9 °F 31 °F 25 °F 77% SW  at  0.0 mph 0.00 in / hr 315 ft 8:07 PM EST Rapid Fire
Kemp Mill, Silver Spring, MD 32.9 °F 33 °F 23 °F 66% NE  at  0.0 mph 0.00 in / hr 270 ft 8:06 PM EST Rapid Fire  
Kemp Mill/Silver Spring, Silver Spring, MD 33.3 °F 33 °F 24 °F 67% NNW  at  0.0 mph 0.00 in / hr 400 ft 8:06 PM EST Rapid Fire
APRSWXNET Silver Spring MD , Silver Spring, MD 37 °F 37 °F 22 °F 55% West  at  0 mph 0.00 in / hr 347 ft 7:39 PM EST MADIS
Laytonsville, MD 30.0 °F 30 °F 20 °F 65% West  at  0.0 mph 0.00 in / hr 600 ft 8:07 PM EST Normal  
Somerset, Chevy Chase, MD 36.7 °F 37 °F 25 °F 63% West  at  0.0 mph 0.00 in / hr 330 ft 8:05 PM EST Normal
Brookeville Farms, Brookeville, MD 34.9 °F 35 °F 20 °F 55% SE  at  0.8 mph 0.00 in / hr 390 ft 8:07 PM EST Rapid Fire  
APRSWXNET Great Falls V, Great Falls, VA 34 °F 34 °F 22 °F 62% NW  at  0 mph 0.00 in / hr 296 ft 7:44 PM EST MADIS
Bethesda, Bethesda, MD 34.9 °F 35 °F 25 °F 67% North  at  0.0 mph 0.00 in / hr 236 ft 8:07 PM EST Rapid Fire  
Brookdale, Bethesda, MD 34.0 °F 34 °F 23 °F 63% SW  at  0.0 mph 0.00 in / hr 262 ft 8:07 PM EST Rapid Fire  
Langley Fork Park, McLean, VA 34.3 °F 34 °F 26 °F 70% WSW  at  0.0 mph 0.00 in / hr 272 ft 8:07 PM EST Rapid Fire  
APRSWXNET Great Falls VA , Great Falls, VA 33 °F 33 °F 21 °F 61% North  at  - 0.00 in / hr 380 ft 7:48 PM EST MADIS
North Germantown, Germantown, MD 27.5 °F 28 °F 16 °F 61% ENE  at  0.0 mph 0.00 in / hr 439 ft 8:07 PM EST Rapid Fire
Hickory Creek, Great Falls, VA 33.4 °F 33 °F 24 °F 69% West  at  0.0 mph 0.00 in / hr 350 ft 8:07 PM EST Rapid Fire
Triadelphia Reservoir, Brookeville, MD 31.0 °F 31 °F 20 °F 62% West  at  0.0 mph 0.00 in / hr 100 ft 8:02 PM EST Normal
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