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

Another Round of Heavy Rain and Mountain Snow in California; Snow in the Great Lakes and Northeast

Another round of heavy rainfall will renew concerns for additional flash flooding and landslides in southern California around burn scars and coastal mountain ranges. A low pressure system is bringing enhanced snowfall downwind from the lower Great Lakes into the Northeast mountain ranges. Above average temperatures will challenge or break daily record high temperatures across the southern Plains. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

40°F

4°C

Humidity 44%
Wind Speed Calm
Barometer 30.02 in (1016.9 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 17 Nov 6:55 pm EST
Extended Forecast for

Accokeek MD

  • Tonight

    Tonight: Mostly clear, with a low around 35. Northwest wind 5 to 8 mph.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of rain, mainly after 4pm. Increasing clouds, with a high near 49. Calm wind. Chance of precipitation is 30%.

    High: 49 °F

    Mostly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly after 7pm. Low around 44. Southeast wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 53. North wind 3 to 5 mph.

    High: 53 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45. Northeast wind around 5 mph becoming calm after midnight.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain after 1am. Cloudy, with a low around 49. Chance of precipitation is 30%.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A chance of rain before 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.

    Low: 51 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 35. Northwest wind 5 to 8 mph.
Tuesday
A chance of rain, mainly after 4pm. Increasing clouds, with a high near 49. Calm wind. Chance of precipitation is 30%.
Tuesday Night
Rain, mainly after 7pm. Low around 44. Southeast wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Mostly cloudy, with a high near 53. North wind 3 to 5 mph.
Wednesday Night
Mostly cloudy, with a low around 45. Northeast wind around 5 mph becoming calm after midnight.
Thursday
Mostly cloudy, with a high near 56.
Thursday Night
A chance of rain after 1am. Cloudy, with a low around 49. Chance of precipitation is 30%.
Friday
A chance of rain before 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.
Friday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Saturday
A chance of rain. Partly sunny, with a high near 57. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Accokeek MD
 38.68°N 77°W (Elev. 62 ft)
Last Update:
6:53 pm EST Nov 17, 2025
Forecast Valid:
7pm EST Nov 17, 2025-6pm EST Nov 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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