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

Excessive Heat for the East; Excessive Rainfall for the Southwest; Severe Weather for the Center of the Nation

Extreme HeatRisk impacts will expand from the Midwest into the Mid-Atlantic and Northeast today. This level of HeatRisk is known for being rare and/or long duration with little to no overnight relief, and affects anyone without effective cooling and/or adequate hydration. Severe weather potential continues from the Great Lakes to the Central Plains today. Heavy rainfall for Southwest on Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

73°F

23°C

Humidity 95%
Wind Speed Calm
Barometer 30.12 in (1020.2 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 23 Jun 6:55 am EDT
Extended Forecast for

Occoquan VA

Extreme Heat Watch June 24, 11:00am until June 24, 09:00pm
Extreme Heat Warning June 23, 11:00am until June 23, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Extreme Heat Warning

  • Today

    Today: Sunny and hot, with a high near 100. Heat index values as high as 111. Northwest wind 5 to 7 mph.

    High: 100 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 80. Calm wind.

    Low: 80 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Heat index values as high as 111. Northwest wind 3 to 6 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 79. Calm wind.

    Low: 79 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 99. Light north wind. Chance of precipitation is 20%.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 76. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Chance of precipitation is 40%.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 75. Chance of precipitation is 40%.

    Low: 75 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 40%.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 100. Heat index values as high as 111. Northwest wind 5 to 7 mph.
Tonight
Mostly clear, with a low around 80. Calm wind.
Tuesday
Sunny and hot, with a high near 101. Heat index values as high as 111. Northwest wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 79. Calm wind.
Wednesday
A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 99. Light north wind. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 76. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 75. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 91. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Occoquan VA
 38.66°N 77.23°W (Elev. 3 ft)
Last Update:
7:30 am EDT Jun 23, 2025
Forecast Valid:
7am EDT Jun 23, 2025-6pm EDT Jun 29, 2025
 
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