Cannon, Virginia Weather
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Weather Forecast for Cannon, Virginia : Fairfax County
Issued: 1:29 am EDT Jul 1, 2025 Latitude: 38.7942802 Longitude: -77.0974786 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Independence Day Saturday Sunday Monday
Cloudy on Overnight 60% chance of thunderstorms on Tuesday 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
Low: 76°F High: 91°F High: 84°F High: 89°F High: 87°F High: 89°F High: 92°F High: 94°F
Low: 71°F Low: 70°F Low: 69°F Low: 68°F Low: 71°F Low: 74°F  
Cloudy Thunderstorms Thunderstorms Sunny Sunny Mostly Sunny Mostly Sunny Thunderstorms
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Current Conditions at
WASHINGTON - (KDCA)
82°
Cloudy
as of 1:52 AM EDST
Rel. Humidity: 74%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
14 MPH
200° South
Cloud Level(s): Scattered at 9500ft, Solid Overcast at 25000ft
Current Conditions at
FORT BELVOIR - (KDAA)
82°
Clear
as of 1:55 AM EDST
Rel. Humidity: 74%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Wind Data
5 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
ANDREWS AFB - (KADW)
82°
Clear
as of 1:55 AM EDST
Rel. Humidity: 69%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
9 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
WASH-DULLES - (KIAD)
81°
Mostly Cloudy
as of 1:52 AM EDST
Rel. Humidity: 78%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
10 MPH
200° South
Cloud Level(s): Broken at 10000ft
Cloudy on Overnight Overnight... Partly cloudy, with a low around 76. South wind around 7 mph, with gusts as high as 20 mph.
60% chance of thunderstorms Tuesday Tuesday... Showers and thunderstorms likely, mainly after 4pm. Some of the storms could produce heavy rainfall. Increasing clouds, with a high near 91. Southwest wind 7 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
90% chance of thunderstorms Tuesday Night Tuesday Night... Showers and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms between 4am and 5am, then a chance of showers after 5am. Some of the storms could produce heavy rainfall. Low around 71. West 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. Cloudy, then gradually becoming mostly sunny, with a high near 84. Northwest wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 70. Calm wind.
Sunny on Thursday Thursday... Sunny, with a high near 89.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 69.
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 68.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 89.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 71.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 92.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 74.
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 Cannon, Virginia
Sunrise: 05:47 AM
Sunset: 8:37 PM
Civil Sunrise:05:16 AM
Civil Sunset: 9:09 PM
Nautical Sunrise: 04:36 AM
Nautical Sunset: 9:49 PM
Astro Sunrise: 03:50 AM
Astro Sunset: 10:35 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.