Herndon, Virginia
Current Conditions -  °F | °C
As of 11:52 PM on Tuesday 15 Apr 2014 (Local Time) from KIAD Reporting Station
Broken Clouds Broken Clouds  
Wind Chill: 24°   Ceiling: 4900
Heat Index: 35°   Visibility: 10mi
Dew Point: 20°   Wind: 18mph
Humidity: 54%   Direction: 340°NNW
Pressure: 30.05"   Gusts: 31mph
Location:  38.97°N, 77.38°W
Report Text: KIAD 160352Z 34016G27KT 10SM BKN049 02/M07 A3005 RMK AO2 PK WND 33029/0332 SLP177 T00171067
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Personal Weather Stations






























Hourly Forecast -  °F | °C
Hi 60° - Lo 28°
1 AM
M Cldy/Wind
M Cldy/Wind
34°
2 AM
P Cldy/Wind
P Cldy/Wind
32°
3 AM
P Cloudy
P Cloudy
30°
4 AM
Clear
Clear
29°
5 AM
Clear
Clear
29°
6 AM
Clear
Clear
29°
Weather Maps
Daily Forecast -  °F | °C
tue wed thu fri sat sun mon tue wed thu
apr
15
P Cldy/Wind
P Cldy/Wind
60°
28°
apr
16
Sunny
Sunny
52°
32°
apr
17
M Sunny
M Sunny
60°
35°
apr
18
P Cloudy
P Cloudy
58°
41°
apr
19
P Cloudy
P Cloudy
63°
40°
apr
20
M Sunny
M Sunny
63°
41°
apr
21
Cloudy
Cloudy
65°
50°
apr
22
Showers
Showers
67°
48°
apr
23
M Cloudy
M Cloudy
67°
49°
apr
24
M Cloudy
M Cloudy
74°
54°
Details for Tuesday, April 15 (Evening)
Evening: Partly cloudy and windy. Near record low temperatures. Low 28F. Winds NNW at 25 to 35 mph.
UV Index: 7 (High)
Ultraviolet Radiation Index
Relative Humidity: 49%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 19%
Snow
Cloud Coverage: 60%
Cloud Coverage
Sunrise: 6:33 AM
Sunset: 7:47 PM
 
Moonrise: 8:25 PM
Moonset: 6:40 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  NNW
Direction: NNW (330°)
Speed: 29Mph(46Km, 25Kts)
Details for Wednesday, April 16
Sunny skies. High 52F. Winds N at 10 to 20 mph.
Evening: Clear. Low 32F. Winds ENE at 5 to 10 mph.
UV Index: 7 (High)
Ultraviolet Radiation Index
Relative Humidity: 33%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 1%
Cloud Coverage
Sunrise: 6:32 AM
Sunset: 7:48 PM
 
Moonrise: 9:28 PM
Moonset: 7:19 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  N
Direction: N (353°)
Speed: 15Mph(24Km, 13Kts)
Details for Thursday, April 17
A few clouds. Highs in the low 60s and lows in the mid 30s.
UV Index: 7 (High)
Ultraviolet Radiation Index
Relative Humidity: 50%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 19%
Cloud Coverage
Sunrise: 6:30 AM
Sunset: 7:49 PM
 
Moonrise: 10:31 PM
Moonset: 8:02 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  ESE
Direction: ESE (102°)
Speed: 11Mph(18Km, 9Kts)
Details for Friday, April 18
Mix of sun and clouds. Highs in the upper 50s and lows in the low 40s.
UV Index: 7 (High)
Ultraviolet Radiation Index
Relative Humidity: 56%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 1%
Snow
Cloud Coverage: 61%
Cloud Coverage
Sunrise: 6:29 AM
Sunset: 7:50 PM
 
Moonrise: 11:32 PM
Moonset: 8:51 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  E
Direction: E (95°)
Speed: 5Mph(8Km, 4Kts)
Details for Saturday, April 19
Times of sun and clouds. Highs in the low 60s and lows in the low 40s.
UV Index: 7 (High)
Ultraviolet Radiation Index
Relative Humidity: 60%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 45%
Cloud Coverage
Sunrise: 6:28 AM
Sunset: 7:51 PM
 
Moonrise: 11:59 PM
Moonset: 9:45 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  NW
Direction: NW (308°)
Speed: 13Mph(21Km, 11Kts)
Details for Sunday, April 20
A few clouds. Highs in the low 60s and lows in the low 40s.
UV Index: 7 (High)
Ultraviolet Radiation Index
Relative Humidity: 55%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 1%
Snow
Cloud Coverage: 14%
Cloud Coverage
Sunrise: 6:26 AM
Sunset: 7:52 PM
 
Moonrise: 12:29 AM
Moonset: 10:45 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  NNE
Direction: NNE (28°)
Speed: 7Mph(12Km, 6Kts)
Details for Monday, April 21
Mostly Cloudy. Highs in the mid 60s and lows in the low 50s.
UV Index: 5 (Moderate)
Ultraviolet Radiation Index
Relative Humidity: 59%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 75%
Cloud Coverage
Sunrise: 6:25 AM
Sunset: 7:53 PM
 
Moonrise: 1:21 AM
Moonset: 11:50 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  SSE
Direction: SSE (158°)
Speed: 9Mph(15Km, 8Kts)
Details for Tuesday, April 22
Chance of showers. Highs in the upper 60s and lows in the upper 40s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 65%
Relative Humidity
Precipitation: 40%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 48%
Cloud Coverage
Sunrise: 6:23 AM
Sunset: 7:54 PM
 
Moonrise: 2:07 AM
Moonset: 12:56 PM
Moon Phase:  Last Quarter
Moonphase:
Last Quarter
Wind Direction:  WSW
Direction: WSW (239°)
Speed: 9Mph(15Km, 8Kts)
Details for Wednesday, April 23
Mostly cloudy. Highs in the upper 60s and lows in the upper 40s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 52%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 26%
Cloud Coverage
Sunrise: 6:22 AM
Sunset: 7:55 PM
 
Moonrise: 2:49 AM
Moonset: 2:04 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  WNW
Direction: WNW (290°)
Speed: 12Mph(20Km, 10Kts)
Details for Thursday, April 24
Considerable cloudiness. Highs in the mid 70s and lows in the mid 50s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 51%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 45%
Cloud Coverage
Sunrise: 6:21 AM
Sunset: 7:56 PM
 
Moonrise: 3:28 AM
Moonset: 3:11 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  SW
Direction: SW (233°)
Speed: 8Mph(13Km, 7Kts)
Daily Forecast Chart
Chart.
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