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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

70°F

21°C

Humidity 70%
Wind Speed Calm
Barometer 29.88 in (1012.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 12 Oct 6:55 pm EDT
Extended Forecast for

Accokeek MD

  • Tonight

    Tonight: Mostly clear, with a low around 59. Light west wind.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 66. Southwest wind 6 to 8 mph.

    Low: 66 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Southwest wind 3 to 6 mph.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly after 2am. Partly cloudy, with a low around 66. Light and variable wind becoming north 5 to 7 mph in the evening. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly before 8am. Mostly cloudy, with a high near 70. Chance of precipitation is 30%.

    High: 70 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 40%.

    High: 78 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly before 8pm. Partly cloudy, with a low around 48. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 59. Light west wind.
Tuesday
Sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the afternoon.
Tuesday Night
Clear, with a low around 66. Southwest wind 6 to 8 mph.
Wednesday
Sunny, with a high near 84. Southwest wind 3 to 6 mph.
Wednesday Night
A chance of showers, mainly after 2am. Partly cloudy, with a low around 66. Light and variable wind becoming north 5 to 7 mph in the evening. Chance of precipitation is 30%.
Thursday
A chance of showers, mainly before 8am. Mostly cloudy, with a high near 70. Chance of precipitation is 30%.
Thursday Night
A chance of showers after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 40%.
Friday Night
A chance of showers, mainly before 8pm. Partly cloudy, with a low around 48. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Accokeek MD
 38.68°N 77°W (Elev. 62 ft)
Last Update:
4:53 pm EDT Oct 12, 2026
Forecast Valid:
7pm EDT Oct 12, 2026-6pm EDT Oct 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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