Potomac Falls, Virginia
Current Conditions -  °F | °C
As of 7:52 AM on Thursday 24 Jul 2014 (Local Time) from KIAD Reporting Station
Overcast Overcast  
Wind Chill: 71°   Ceiling: 2500
Heat Index: 71°   Visibility: 10mi
Dew Point: 67°   Wind: 6mph
Humidity: 87%   Direction: 340°NNW
Pressure: 29.91"   Gusts: NA
Location:  39.0512°N, 77.4089°W
Report Text: KIAD 241152Z 34005KT 10SM SCT018 OVC025 22/19 A2991 RMK AO2 SLP127 60006 70006 T02170194 10244 20217 53010
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Personal Weather Stations






























Hourly Forecast -  °F | °C
Hi 82° - Lo 61°
9 AM
Few Showers
Few Showers
73°
10 AM
Few Showers
Few Showers
74°
11 AM
Few Showers
Few Showers
75°
12 PM
Few Showers
Few Showers
76°
1 PM
Few Showers
Few Showers
78°
2 PM
Few Showers
Few Showers
80°
Weather Maps
Daily Forecast -  °F | °C
thu fri sat sun mon tue wed thu fri sat
jul
24
Few Showers
Few Showers
82°
61°
jul
25
Sunny
Sunny
86°
65°
jul
26
P Cloudy
P Cloudy
92°
71°
jul
27
Sct T-Storms
Sct T-Storms
92°
70°
jul
28
Sct T-Storms
Sct T-Storms
87°
64°
jul
29
Sunny
Sunny
80°
59°
jul
30
Sunny
Sunny
83°
61°
jul
31
M Sunny
M Sunny
86°
62°
aug
01
P Cloudy
P Cloudy
84°
65°
aug
02
T-Storms
T-Storms
81°
65°
Details for Thursday, July 24
Cloudy with a few showers. High 82F. Winds N at 5 to 10 mph. Chance of rain 30%.
Evening: Some clouds this evening will give way to mainly clear skies overnight. Low 61F. Winds light and variable.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 70%
Relative Humidity
Precipitation: 30%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 79%
Cloud Coverage
Sunrise: 6:04 AM
Sunset: 8:29 PM
 
Moonrise: 4:10 AM
Moonset: 6:43 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  N
Direction: N (351°)
Speed: 8Mph(13Km, 7Kts)
Details for Friday, July 25
Mainly sunny. High 86F. Winds light and variable.
Evening: Mainly clear early, then a few clouds later on. Low around 65F. Winds light and variable.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 49%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 5%
Cloud Coverage
Sunrise: 6:04 AM
Sunset: 8:28 PM
 
Moonrise: 5:02 AM
Moonset: 7:24 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  NW
Direction: NW (306°)
Speed: 5Mph(8Km, 4Kts)
Details for Saturday, July 26
Times of sun and clouds. Highs in the low 90s and lows in the low 70s.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 64%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 40%
Cloud Coverage
Sunrise: 6:05 AM
Sunset: 8:27 PM
 
Moonrise: 5:56 AM
Moonset: 8:02 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  SSW
Direction: SSW (192°)
Speed: 10Mph(16Km, 9Kts)
Details for Sunday, July 27
Scattered thunderstorms. Highs in the low 90s and lows in the low 70s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 70%
Relative Humidity
Precipitation: 80%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 68%
Cloud Coverage
Sunrise: 6:06 AM
Sunset: 8:26 PM
 
Moonrise: 6:51 AM
Moonset: 8:36 PM
Moon Phase:  New
Moonphase:
New
Wind Direction:  WSW
Direction: WSW (249°)
Speed: 8Mph(13Km, 7Kts)
Details for Monday, July 28
A few thunderstorms possible. Highs in the upper 80s and lows in the mid 60s.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 65%
Relative Humidity
Precipitation: 60%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 27%
Cloud Coverage
Sunrise: 6:07 AM
Sunset: 8:25 PM
 
Moonrise: 7:46 AM
Moonset: 9:07 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  W
Direction: W (275°)
Speed: 12Mph(20Km, 10Kts)
Details for Tuesday, July 29
Abundant sunshine. Highs in the low 80s and lows in the upper 50s.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 54%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 7%
Cloud Coverage
Sunrise: 6:08 AM
Sunset: 8:24 PM
 
Moonrise: 8:41 AM
Moonset: 9:38 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  NW
Direction: NW (317°)
Speed: 9Mph(15Km, 8Kts)
Details for Wednesday, July 30
Mainly sunny. Highs in the low 80s and lows in the low 60s.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 53%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 6%
Cloud Coverage
Sunrise: 6:09 AM
Sunset: 8:23 PM
 
Moonrise: 9:37 AM
Moonset: 10:07 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  W
Direction: W (280°)
Speed: 5Mph(8Km, 4Kts)
Details for Thursday, July 31
More sun than clouds. Highs in the mid 80s and lows in the low 60s.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 57%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 19%
Cloud Coverage
Sunrise: 6:10 AM
Sunset: 8:22 PM
 
Moonrise: 10:33 AM
Moonset: 10:37 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  SSE
Direction: SSE (149°)
Speed: 6Mph(10Km, 5Kts)
Details for Friday, August 01
Mix of sun and clouds. Highs in the mid 80s and lows in the mid 60s.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 63%
Relative Humidity
Precipitation: 40%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 53%
Cloud Coverage
Sunrise: 6:11 AM
Sunset: 8:21 PM
 
Moonrise: 11:29 AM
Moonset: 11:08 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  SE
Direction: SE (131°)
Speed: 8Mph(13Km, 7Kts)
Details for Saturday, August 02
Showers and thunderstorms. Highs in the low 80s and lows in the mid 60s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 79%
Relative Humidity
Precipitation: 80%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 70%
Cloud Coverage
Sunrise: 6:11 AM
Sunset: 8:20 PM
 
Moonrise: 12:27 PM
Moonset: 11:41 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  ESE
Direction: ESE (121°)
Speed: 6Mph(10Km, 5Kts)
Daily Forecast Chart
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