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

Fire Weather Concerns and Severe Thunderstorms through the Weekend

Dry and windy conditions, and some dry thunderstorms and lightning, may support hazardous fire activity in the northern Plains, high southern Plains and the Southwest this weekend. An active severe weather pattern is forecast for portions of the central and southern High Plains into the Upper Midwest through early the part of next week. Damaging winds, large hail, and tornadoes are possible. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

71°F

22°C

Humidity 34%
Wind Speed NW 15 mph
Barometer 29.98 in (1015.5 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 15 May 2:55 pm EDT
Extended Forecast for

Accokeek MD

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 53. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 53 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 63. South wind 6 to 8 mph.

    Low: 63 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82. Calm wind becoming west around 5 mph in the morning.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. Light southeast wind.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 53. Northwest wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the morning.
Saturday Night
Partly cloudy, with a low around 63. South wind 6 to 8 mph.
Sunday
Mostly sunny, with a high near 82. Calm wind becoming west around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 64. Light southeast wind.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.
Thursday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 50%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 73. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Accokeek MD
 38.69°N 77.03°W (Elev. 115 ft)
Last Update:
2:23 pm EDT May 15, 2026
Forecast Valid:
3pm EDT May 15, 2026-6pm EDT May 22, 2026
 
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