Great Falls, Virginia Weather
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Weather Forecast for Great Falls, Virginia : Fairfax County
Issued: 1:30 am EDT Jul 2, 2025 Latitude: 38.9981653 Longitude: -77.2883157 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Independence Day Saturday Sunday Monday Tuesday
60% chance of rain on Overnight 50% chance of thunderstorms on Wednesday Sunny on Thursday Sunny on Independence Day Sunny on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday 50% chance of thunderstorms on Tuesday
Low: 70°F High: 84°F High: 88°F High: 85°F High: 87°F High: 89°F High: 89°F High: 91°F
Low: 67°F Low: 66°F Low: 65°F Low: 67°F Low: 69°F Low: 72°F  
Rain Thunderstorms Sunny Sunny Sunny Mostly Sunny Mostly Sunny Thunderstorms
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Current Conditions at
WASH-DULLES - (KIAD)
72°
Mostly Cloudy
Light Rain
as of 2:32 AM EDST
Rel. Humidity: 94%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
7 MPH
350° North
Cloud Level(s): Few at 1300ft, Scattered at 1900ft, Broken at 7500ft
Current Conditions at
LEESBURG/GODFREY - (KJYO)
70°
Partly Cloudy
Light Rain
as of 2:35 AM EDST
Rel. Humidity: 100%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: VFR
Wind Data
5 MPH
010° North
Cloud Level(s): Scattered at 12000ft
Current Conditions at
WASHINGTON - (KDCA)
75°
Mostly Clear
Light Rain
as of 1:52 AM EDST
Rel. Humidity: 88%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
6 MPH
260° West
Cloud Level(s): Few at 1100ft, Scattered at 3200ft, Broken at 8000ft, Solid Overcast at 14000ft
Current Conditions at
FORT BELVOIR - (KDAA)
75°
Mostly Clear
Light Rain
as of 2:41 AM EDST
Rel. Humidity: 94%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 900ft
60% chance of rain Overnight Overnight... Showers likely. Cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
50% chance of thunderstorms Wednesday Wednesday... A chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 84. Calm wind becoming north around 5 mph. Chance of precipitation is 50%.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 67. Calm wind.
Sunny on Thursday Thursday... Sunny, with a high near 88. Northwest wind 3 to 6 mph.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 66. Northwest wind 3 to 5 mph.
Sunny on Independence Day Independence Day... Sunny, with a high near 85.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 65.
Sunny on Saturday Saturday... Sunny, with a high near 87.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 67.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 89.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 69.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 89.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 72.
50% chance of thunderstorms Tuesday Tuesday... A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 50%.
Current Radar Image


Sun Almanac for Great Falls, Virginia
Sunrise: 05:48 AM
Sunset: 8:39 PM
Civil Sunrise:05:16 AM
Civil Sunset: 9:11 PM
Nautical Sunrise: 04:36 AM
Nautical Sunset: 9:51 PM
Astro Sunrise: 03:50 AM
Astro Sunset: 10:37 PM
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