Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

85°F

29°C

Humidity 66%
Wind Speed S 6 mph
Barometer 29.94 in (1014.1 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 27 Aug 12:55 pm EDT
Extended Forecast for

Occoquan VA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe.  Partly sunny, with a high near 89. South wind around 9 mph.  Chance of precipitation is 30%.

    High: 89 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 1am. Some of the storms could be severe.  Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 69. South wind around 5 mph becoming calm  after midnight.  Chance of precipitation is 40%.

    Low: 69 °F

    Severe
    Thunderstorms
    then Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm.  Patchy fog before 8am.  Otherwise, partly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 88 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 69. Calm wind.  Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 88. Light and variable wind becoming north around 5 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy fog before 4am, then patchy fog after 5am.  Otherwise, mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, sunny, with a high near 90.

    High: 90 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Partly sunny, with a high near 89. South wind around 9 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 69. South wind around 5 mph becoming calm after midnight. Chance of precipitation is 40%.
Friday
A slight chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 88. Light and variable wind becoming north around 5 mph in the afternoon.
Saturday Night
Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 69.
Sunday
Patchy fog before 8am. Otherwise, sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 72.
Monday
Sunny, with a high near 93.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
Mostly sunny, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 74.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Occoquan VA
 38.69°N 77.26°W (Elev. 59 ft)
10:53 am EDT Aug 27, 2026
1pm EDT Aug 27, 2026-6pm EDT Sep 2, 2026
 
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Additional Resources

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