Cornwell, Virginia Weather
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Weather Forecast for Cornwell, Virginia : Prince William County
Issued: 7:30 am EDT Jul 1, 2025 Latitude: 38.6890062 Longitude: -77.4413758 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Independence Day Saturday Sunday Monday
60% chance of thunderstorms on Today 90% chance of thunderstorms on Tonight 60% chance of thunderstorms on Wednesday Sunny on Thursday Sunny on Independence Day Mostly Sunny on Saturday Mostly Sunny on Sunday 30% chance of thunderstorms on Monday
High: 91°F Low: 70°F High: 85°F High: 89°F High: 87°F High: 90°F High: 92°F High: 94°F
Low: 68°F Low: 67°F Low: 66°F Low: 69°F Low: 72°F  
Thunderstorms Thunderstorms Thunderstorms Sunny Sunny Mostly Sunny Mostly Sunny Thunderstorms
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Current Conditions at
MANASSAS - (KHEF)
79°
Clear
as of 6:56 AM EDST
Rel. Humidity: 83%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
5 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
FORT BELVOIR - (KDAA)
81°
Clear
as of 6:55 AM EDST
Rel. Humidity: 78%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
QUANTICO MCAS - (KNYG)
81°
Clear
as of 6:56 AM EDST
Rel. Humidity: 78%
Dew Point: 73°F
Visibility: 7 Miles
Pressure: 29.91 in.
Flight Rule: VFR
Wind Data
8 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
WASH-DULLES - (KIAD)
79°
Mostly Cloudy
as of 6:52 AM EDST
Rel. Humidity: 83%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: VFR
Wind Data
9 MPH
200° South
Cloud Level(s): Broken at 13000ft, Broken at 25000ft
60% chance of thunderstorms Today Today... Showers and thunderstorms likely, mainly after 3pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 91. Heat index values as high as 100. South wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
90% chance of thunderstorms Tonight Tonight... Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 5am, then a chance of showers after 5am. Some of the storms could produce heavy rainfall. Low around 70. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
60% chance of thunderstorms Wednesday Wednesday... Showers likely, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 85. Light north wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
30% chance of thunderstorms Wednesday Night Wednesday Night... A chance of thunderstorms before 8pm. Mostly clear, with a low around 68. Calm wind. Chance of precipitation is 30%.
Sunny on Thursday Thursday... Sunny, with a high near 89. Northwest wind 3 to 6 mph.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 67.
Sunny on Independence Day Independence Day... Sunny, with a high near 87.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 66.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 90.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 69.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 92.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 72.
30% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 30%.
Current Radar Image


Sun Almanac for Cornwell, Virginia
Sunrise: 05:49 AM
Sunset: 8:38 PM
Civil Sunrise:05:17 AM
Civil Sunset: 9:10 PM
Nautical Sunrise: 04:37 AM
Nautical Sunset: 9:50 PM
Astro Sunrise: 03:52 AM
Astro Sunset: 10:36 PM
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