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Tropical Storm Bertha in the Gulf; Severe Weather in the East on Tuesday

Tropical Storm Bertha could bring tropical storm conditions to portions of the Florida Panhandle and Alabama coast through Wednesday, where a Tropical Storm Watch and Storm Surge Watch is in effect. Numerous severe thunderstorms with heavy rainfall are expected from the Ohio Valley into the Mid-Atlantic and Northeast Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Overcast

77°F

25°C

Humidity 83%
Wind Speed S 6 mph
Barometer 29.80 in (1009.3 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 21 Jul 8:55 am EDT
Extended Forecast for

Occoquan VASimilar City Names

  • Today

    Today: Showers and thunderstorms likely, mainly after 3pm. Some of the storms could be severe. Mostly cloudy, with a high near 91. Heat index values as high as 102. Southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Mostly Cloudy
    then Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm between 2am and 3am, then scattered showers and thunderstorms after 3am. Some of the storms could be severe. Mostly cloudy, with a low around 71. Southwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 71 °F

    Severe
    Thunderstorms
    then Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 86. Southwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 64. North wind 3 to 8 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 81. North wind 7 to 9 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 20%.

    Low: 65 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 3pm. Some of the storms could be severe. Mostly cloudy, with a high near 91. Heat index values as high as 102. Southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm between 2am and 3am, then scattered showers and thunderstorms after 3am. Some of the storms could be severe. Mostly cloudy, with a low around 71. Southwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 86. Southwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 64. North wind 3 to 8 mph. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 81. North wind 7 to 9 mph.
Thursday Night
Mostly clear, with a low around 62.
Friday
Mostly sunny, with a high near 82.
Friday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 20%.
Saturday
A slight chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 66. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Occoquan VASimilar City Names
 38.69°N 77.26°W (Elev. 59 ft)
Last Update:
7:53 am EDT Jul 21, 2026
Forecast Valid:
10am EDT Jul 21, 2026-6pm EDT Jul 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation