Herndon, VA (20170)

5:01 PM EDT on July 31, 2014 (GMT -0400)
Dranesville (KVAHERND3) Elev 308 ft | 38.99 °N, 77.37 °W | Change Station

Current weather conditions updated 16 seconds ago

Mostly Cloudy
Mostly Cloudy
83.8 °F
Feels Like 83 °F
N
4.0
Wind Variable Wind from SE
Gusts 6.0 mph

Tomorrow is forecast to be Much Cooler than today. Slight chance of a thunderstorm.

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
6:09 AM 8:21 PM
Waxing Crescent, 21% visible
Pressure 30.07 in
Visibility 10.0 miles
Clouds Few 6500 ft
Mostly Cloudy 25000 ft
Heat Index 83 °F
Dew Point 56 °F
Humidity 39%
Rainfall 0.00 in
Snow Depth Not available.
UV 3 out of 12
Pollen 7.40 out of 12
Ozone Good
PM2.5 Moderate
Flu Activity Not available.
METAR KIAD 312052Z 19008KT 10SM FEW065 BKN250 29/12 A3008 RMK AO2 SLP183 TCU DSNT E T02890122 58004

More Conditions Fewer Conditions

Pressure 30.07 in
Visibility 10.0 miles
Clouds Few 6500 ft
Mostly Cloudy 25000 ft
Heat Index 83 °F
Dew Point 56 °F
Humidity 39%
Rainfall 0.00 in
Snow Depth Not available.
UV 3 out of 12
Pollen 7.40 out of 12
Ozone Good
PM2.5 Moderate
Flu Activity Not available.
METAR KIAD 312052Z 19008KT 10SM FEW065 BKN250 29/12 A3008 RMK AO2 SLP183 TCU DSNT E T02890122 58004

More Conditions Fewer Conditions

10-Day Weather Forecast

Almanac

Astronomy

Jul. 31, 2014 Rise Set
Actual Time 6:09 AM EDT 8:21 PM EDT
Civil Twilight 5:39 AM EDT 8:51 PM EDT
Nautical Twilight 5:02 AM EDT 9:28 PM EDT
Astronomical Twilight 4:22 AM EDT 10:07 PM EDT
Moon 10:32 AM EDT 10:36 PM EDT
Length of Visible Light 15h 12m
Length of Day
14h 12m
Tomorrow will be 1m 54s shorter.
Waxing Crescent, 21% of the Moon is Illuminated
Today
Waxing Crescent
Aug 3
First Quarter
Aug 10
Full
Aug 17
Last Quarter
Aug 25
New

Today's Extremes

State Highs State Lows

Community

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Nearby

Air Quality

  Air Quality AQ Index Pollutant
Yesterday Good
PM10
Yesterday Good
OZONE
Current Moderate
PM2.5
Current Good
OZONE
Thursday Moderate
OZONE
Thursday Good
PM2.5
Friday Moderate
PM2.5
Friday Good
OZONE
Saturday Good
OZONE
Saturday Good
PM2.5
Sunday Good
OZONE
Sunday Good
PM2.5

Snow Depth

Station Depth Elevation
No new snow has been reported.

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 81.0 °F
Baltimore, MD 80.1 °F
Solomons Island, MD 80.1 °F

Nearby Weather Stations

Station Location Temp. Heat Index Dew Point Humidity Wind Precip. Elev Updated Type
Dranesville, Herndon, VA 83.8 °F 83 °F 56 °F 39% SE  at  4.0 mph 0.00 in / hr 308 ft 5:01 PM EDT Rapid Fire
Shaker Woods, Herndon, VA 81.3 °F 83 °F 62 °F 54% North  at  - - / hr 315 ft 4:50 PM EDT Normal
Falls Brook, Herndon, VA 84.8 °F 86 °F 64 °F 49% SE  at  0.0 mph 0.00 in / hr 280 ft 4:55 PM EDT Normal
Renegade Tower, Herndon, VA 84.9 °F 85 °F 61 °F 45% WNW  at  2.2 mph - / hr 302 ft 4:48 PM EDT Normal
Monroe Manor, Herndon, VA 84.9 °F 84 °F 56 °F 37% SE  at  1.6 mph - / hr 384 ft 5:01 PM EDT Rapid Fire
Monterey Estates, Herndon, VA 88.3 °F 89 °F 62 °F 42% SSW  at  3.5 mph 0.00 in / hr 390 ft 5:01 PM EDT Rapid Fire
Courtlands at Cascades, Sterling, VA 89.8 °F 89 °F 58 °F 35% West  at  2.3 mph 0.00 in / hr 312 ft 5:01 PM EDT Rapid Fire
Chantilly Highlands, Herndon, VA 84.7 °F 85 °F 61 °F 45% West  at  6.9 mph 0.00 in / hr 340 ft 5:01 PM EDT Rapid Fire
Colvin Run at Hunter Mill Rd (One Lane B, Vienna, VA 84.2 °F 85 °F 62 °F 47% WSW  at  0.0 mph 0.00 in / hr 295 ft 5:00 PM EDT Normal
Lake Fairfax, Vienna, VA 85.4 °F 89 °F 68 °F 57% East  at  0.0 mph 0.00 in / hr 275 ft 5:01 PM EDT Rapid Fire
Countryside, Sterling, VA 89.2 °F 88 °F 59 °F 36% SW  at  0.0 mph 0.00 in / hr 292 ft 5:01 PM EDT Rapid Fire
Great Falls VA, Great Falls, VA 83.1 °F 83 °F 60 °F 46% SSW  at  0.0 mph 0.00 in / hr 380 ft 5:00 PM EDT Normal
Weatherscience.net, Potomac Falls, VA 87.5 °F 87 °F 60 °F 40% ENE  at  3.5 mph 0.00 in / hr 223 ft 5:01 PM EDT Rapid Fire
Hawk Ridge Subdivision, Reston, VA 81.8 °F 83 °F 63 °F 53% SSW  at  0.0 mph 0.00 in / hr 300 ft 5:00 PM EDT Normal
Folkstone, Oak Hill, VA 85.1 °F 85 °F 61 °F 44% WSW  at  0.0 mph 0.00 in / hr 375 ft 4:59 PM EDT Normal
Fox Mill, Herndon, VA 85.3 °F 88 °F 66 °F 53% NE  at  0.0 mph 0.00 in / hr 383 ft 5:01 PM EDT Rapid Fire
Franklin Farm, Herndon, VA 89.8 °F 91 °F 63 °F 41% ESE  at  0.0 mph 0.00 in / hr 364 ft 5:01 PM EDT Rapid Fire
Near Oak Hill Reserve, Herndon, VA 84.7 °F 87 °F 65 °F 52% West  at  2.0 mph 0.00 in / hr 371 ft 5:00 PM EDT Normal
Lees Corner Road, Chantilly, Chantilly, VA 86.0 °F 87 °F 62 °F 45% SE  at  3.1 mph 0.00 in / hr 308 ft 5:01 PM EDT Rapid Fire
One Loudoun, Ashburn, VA 85.8 °F 85 °F 59 °F 41% SW  at  4.0 mph - / hr 236 ft 4:59 PM EDT Normal
Oakton, Oakton, VA 83.9 °F 84 °F 60 °F 44% West  at  1.0 mph 0.00 in / hr 455 ft 4:51 PM EDT Normal
Brookfield, Chantilly, VA 86.9 °F 84 °F 51 °F 29% NW  at  2.0 mph 0.00 in / hr 389 ft 5:01 PM EDT Normal
Falcon Ridge, Great Falls, VA 83.8 °F 86 °F 66 °F 55% North  at  0.0 mph 0.00 in / hr 275 ft 5:00 PM EDT Normal
Clarks Crossing, Vienna, VA 83.8 °F 84 °F 62 °F 48% North  at  0.0 mph 0.00 in / hr 312 ft 5:00 PM EDT Normal
Ashburn Village 1, Ashburn, VA 88.4 °F 88 °F 59 °F 37% North  at  4.0 mph 0.00 in / hr 279 ft 5:01 PM EDT Rapid Fire
Trott Ave, Vienna, VA 85.4 °F 88 °F 67 °F 54% NNE  at  0.0 mph - / hr 415 ft 4:53 PM EDT Normal
Brambleton, Brambleton, VA 87.0 °F 88 °F 62 °F 44% SW  at  2.0 mph 0.00 in / hr 310 ft 5:01 PM EDT Rapid Fire
Ridings at Blue Springs, Chantilly, VA 85.0 °F 86 °F 62 °F 46% South  at  0.0 mph 0.00 in / hr 303 ft 5:01 PM EDT Rapid Fire
Wolf Trap Woods, Vienna, VA 82.7 °F 84 °F 65 °F 55% ENE  at  0.0 mph 0.00 in / hr 367 ft 4:54 PM EDT Normal
Brambleton, Ashburn, VA 84.7 °F 85 °F 62 °F 46% NW  at  3.7 mph - / hr 341 ft 4:46 PM EDT Normal
Beulah-Wolf Trap, Vienna, VA 84.9 °F 87 °F 66 °F 52% South  at  0.0 mph 0.00 in / hr 430 ft 4:56 PM EDT Normal

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