Great Falls, Virginia
Current Conditions -  °F | °C
As of 11:52 AM on Tuesday 23 Sep 2014 (Local Time) from KIAD Reporting Station
Scattered Clouds Scattered Clouds  
Wind Chill: 63°   Ceiling: Unl
Heat Index: 63°   Visibility: 10mi
Dew Point: 43°   Wind: 0mph
Humidity: 48%   Direction: NA
Pressure: 30.37"   Gusts: NA
Location:  39°N, 77.29°W
Report Text: KIAD 231552Z 00000KT 10SM FEW050 SCT250 17/06 A3037 RMK AO2 SLP284 T01720061
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Personal Weather Stations






























Hourly Forecast -  °F | °C
Hi 70° - Lo 52°
1 PM
P Cloudy
P Cloudy
65°
2 PM
P Cloudy
P Cloudy
67°
3 PM
P Cloudy
P Cloudy
68°
4 PM
P Cloudy
P Cloudy
69°
5 PM
P Cloudy
P Cloudy
68°
6 PM
M Cloudy
M Cloudy
67°
Weather Maps
Daily Forecast -  °F | °C
tue wed thu fri sat sun mon tue wed thu
sep
23
P Cloudy
P Cloudy
70°
52°
sep
24
M Cloudy
M Cloudy
73°
58°
sep
25
Showers
Showers
68°
56°
sep
26
P Cloudy
P Cloudy
78°
54°
sep
27
Sunny
Sunny
80°
55°
sep
28
M Sunny
M Sunny
83°
57°
sep
29
P Cloudy
P Cloudy
79°
59°
sep
30
Showers
Showers
71°
62°
oct
01
PM Lgt Rain
PM Lgt Rain
75°
59°
oct
02
Showers
Showers
78°
59°
Details for Tuesday, September 23
A mix of clouds and sun. High around 70F. Winds light and variable.
Evening: Some clouds. Low 52F. Winds light and variable.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 43%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 40%
Cloud Coverage
Sunrise: 6:57 AM
Sunset: 7:04 PM
 
Moonrise: 6:20 AM
Moonset: 6:42 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  NNE
Direction: NNE (24°)
Speed: 5Mph(8Km, 5Kts)
Details for Wednesday, September 24
A mix of clouds and sun in the morning followed by cloudy skies during the afternoon. High 73F. Winds ENE at 10 to 15 mph.
Evening: Showers early, becoming a steady rain late. Low 58F. Winds NNE at 10 to 15 mph. Chance of rain 60%. Rainfall near a half an inch.
UV Index: 4 (Moderate)
Ultraviolet Radiation Index
Relative Humidity: 65%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 82%
Cloud Coverage
Sunrise: 6:58 AM
Sunset: 7:03 PM
 
Moonrise: 7:17 AM
Moonset: 7:13 PM
Moon Phase:  New
Moonphase:
New
Wind Direction:  ENE
Direction: ENE (57°)
Speed: 12Mph(19Km, 13Kts)
Details for Thursday, September 25
Chance of showers. Highs in the upper 60s and lows in the mid 50s.
UV Index: 4 (Moderate)
Ultraviolet Radiation Index
Relative Humidity: 89%
Relative Humidity
Precipitation: 40%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 84%
Cloud Coverage
Sunrise: 6:59 AM
Sunset: 7:01 PM
 
Moonrise: 8:14 AM
Moonset: 7:45 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  N
Direction: N (2°)
Speed: 11Mph(17Km, 12Kts)
Details for Friday, September 26
Partly cloudy. Highs in the upper 70s and lows in the mid 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 63%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 32%
Cloud Coverage
Sunrise: 7:00 AM
Sunset: 6:59 PM
 
Moonrise: 9:13 AM
Moonset: 8:19 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  N
Direction: N (11°)
Speed: 8Mph(12Km, 9Kts)
Details for Saturday, September 27
Mainly sunny. Highs in the low 80s and lows in the mid 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 62%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 4%
Cloud Coverage
Sunrise: 7:01 AM
Sunset: 6:58 PM
 
Moonrise: 10:12 AM
Moonset: 8:58 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  NNE
Direction: NNE (26°)
Speed: 6Mph(9Km, 7Kts)
Details for Sunday, September 28
A few clouds. Highs in the low 80s and lows in the upper 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 58%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 15%
Cloud Coverage
Sunrise: 7:02 AM
Sunset: 6:56 PM
 
Moonrise: 11:11 AM
Moonset: 9:41 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  N
Direction: N (2°)
Speed: 4Mph(6Km, 5Kts)
Details for Monday, September 29
Partly cloudy. Highs in the upper 70s and lows in the upper 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 70%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 39%
Cloud Coverage
Sunrise: 7:03 AM
Sunset: 6:55 PM
 
Moonrise: 12:10 PM
Moonset: 10:29 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  NNW
Direction: NNW (342°)
Speed: 6Mph(9Km, 7Kts)
Details for Tuesday, September 30
Showers. Highs in the low 70s and lows in the low 60s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 88%
Relative Humidity
Precipitation: 50%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 58%
Cloud Coverage
Sunrise: 7:04 AM
Sunset: 6:53 PM
 
Moonrise: 1:07 PM
Moonset: 11:23 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  ENE
Direction: ENE (65°)
Speed: 9Mph(14Km, 10Kts)
Details for Wednesday, October 01
Late day light rain. Highs in the mid 70s and lows in the upper 50s.
UV Index: 4 (Moderate)
Ultraviolet Radiation Index
Relative Humidity: 76%
Relative Humidity
Precipitation: 60%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 77%
Cloud Coverage
Sunrise: 7:05 AM
Sunset: 6:51 PM
 
Moonrise: 2:01 PM
Moonset: 12:01 AM
Moon Phase:  First Quarter
Moonphase:
First Quarter
Wind Direction:  ENE
Direction: ENE (63°)
Speed: 7Mph(12Km, 8Kts)
Details for Thursday, October 02
Showers. Highs in the upper 70s and lows in the upper 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 80%
Relative Humidity
Precipitation: 60%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 42%
Cloud Coverage
Sunrise: 7:06 AM
Sunset: 6:50 PM
 
Moonrise: 2:51 PM
Moonset: 12:23 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  S
Direction: S (190°)
Speed: 4Mph(6Km, 5Kts)
Daily Forecast Chart
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