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

Tracking Storm System Across the Central U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

55°F

13°C

Humidity 43%
Wind Speed NW 7 mph
Barometer 30.10 in (1019.6 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 17 Oct 9:55 am EDT
Extended Forecast for

2 Miles WNW Accokeek MD

  • Today

    Today: Sunny, with a high near 65. Northwest wind around 7 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming south around 6 mph in the afternoon.

    High: 70 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. South wind around 6 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers after 2pm. Partly sunny, with a high near 76. South wind 9 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

    High: 76 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers before 8am. Mostly sunny, with a high near 66. Chance of precipitation is 30%.

    High: 66 °F

    Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 65. Northwest wind around 7 mph.
Tonight
Mostly clear, with a low around 47. Calm wind.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 55. South wind around 6 mph.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 76. South wind 9 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Sunday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Monday
A chance of showers before 8am. Mostly sunny, with a high near 66. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Accokeek MD
 38.69°N 77.06°W (Elev. 144 ft)
Last Update:
7:29 am EDT Oct 17, 2025
Forecast Valid:
10am EDT Oct 17, 2025-6pm EDT Oct 23, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation