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

Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Mostly Cloudy

68°F

20°C

Humidity 91%
Wind Speed Calm
Barometer 30.19 in (1022.6 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 30 Aug 1:55 am EDT
Extended Forecast for

2 Miles SSE Occoquan VA

  • Overnight

    Overnight: Partly cloudy, with a low around 69. Light south wind.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: Isolated showers and thunderstorms after 2pm. Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 90. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 20%.

    High: 90 °F

    Patchy Fog
    then Isolated
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: Isolated showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Calm wind. Chance of precipitation is 20%.

    High: 94 °F

    Mostly Sunny
    then Isolated
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75. Light and variable wind.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Chance of precipitation is 20%.

    High: 98 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 78.

    Low: 78 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77. Chance of precipitation is 20%.

    Low: 77 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 69. Light south wind.
Sunday
Isolated showers and thunderstorms after 2pm. Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 90. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening.
Monday
Isolated showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Calm wind. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 75. Light and variable wind.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 78.
Wednesday
Mostly sunny and hot, with a high near 98.
Wednesday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Occoquan VA
 38.66°N 77.23°W (Elev. 3 ft)
Last Update:
2:22 am EDT Aug 30, 2026
Forecast Valid:
2am EDT Aug 30, 2026-6pm EDT Sep 5, 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