National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Critical Fire Weather Conditions and Severe Thunderstorms Today

Scattered severe thunderstorms are possible across portions of the northern High Plains this afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin today and the southern High Plains on Thursday. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

62°F

17°C

Humidity 88%
Wind Speed SE 3 mph
Barometer 29.74 in (1007.4 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 13 May 6:55 pm EDT
Extended Forecast for

Fairfax VA

  • Tonight

    Tonight: Showers and possibly a thunderstorm before midnight, then a slight chance of showers between midnight and 3am. Low around 52. South wind 5 to 9 mph becoming northwest after midnight. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Showers then
    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 64. Northwest wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50. Northwest wind around 11 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 73. Northwest wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before midnight, then a slight chance of showers between midnight and 3am. Low around 52. South wind 5 to 9 mph becoming northwest after midnight. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly sunny, with a high near 64. Northwest wind 11 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 50. Northwest wind around 11 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 73. Northwest wind 11 to 14 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 54. Calm wind.
Saturday
Sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 71.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VA
 38.83°N 77.29°W (Elev. 348 ft)
Last Update:
6:12 pm EDT May 13, 2026
Forecast Valid:
7pm EDT May 13, 2026-6pm EDT May 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation