


Hazardous Weather Conditions
Current conditions at
Fort Belvoir (KDAA)
Lat: 38.72°NLon: 77.18°WElev: 69ft.
Thunderstorm in Vicinity
77°F
25°C
Humidity | 94% |
Wind Speed | Calm |
Barometer | 29.98 in (1015.4 mb) |
Dewpoint | 75°F (24°C) |
Visibility | 10.00 mi |
Heat Index | 78°F (26°C) |
Last update | 14 Jul 7:55 pm EDT |
Extended Forecast for
Fairfax VA
Tonight
Low: 72 °F
Showers
Likely then
Slight Chance
T-storms and
Patchy FogTuesday
High: 87 °F
Slight Chance
Showers and
Patchy Fog
then Showers
LikelyTuesday Night
Low: 73 °F
Chance
T-storms then
Slight Chance
ShowersWednesday
High: 90 °F
Slight Chance
T-storms then
Showers
LikelyWednesday Night
Low: 75 °F
Showers
Likely then
Slight Chance
T-stormsThursday
High: 92 °F
Mostly Sunny
then Chance
T-stormsThursday Night
Low: 75 °F
Chance
T-storms then
Partly CloudyFriday
High: 90 °F
Mostly Sunny
then Chance
T-stormsFriday Night
Low: 72 °F
Chance
T-storms then
Partly Cloudy
Detailed Forecast
Tonight
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 4am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 87. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers. Mostly cloudy, with a low around 73. Light south wind. Chance of precipitation is 30%.
Wednesday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 90. South wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 75. South wind around 6 mph. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 50%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Fairfax VA
38.85°N 77.29°W (Elev. 400 ft)
38.85°N 77.29°W (Elev. 400 ft)
7:30 pm EDT Jul 14, 2025
9pm EDT Jul 14, 2025-6pm EDT Jul 21, 2025