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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Light Rain

61°F

16°C

Humidity 88%
Wind Speed Calm
Barometer 30.20 in (1022.9 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 3 Oct 3:55 pm EDT
Extended Forecast for

Merrifield VA

  • This Afternoon

    This Afternoon: A chance of showers, mainly before 5pm. Cloudy, with a high near 62. Northeast wind around 5 mph. Chance of precipitation is 30%.

    High: 62 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers after 3am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 57. Light northeast wind. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Showers likely, mainly before 10am. Patchy fog before 11am. Otherwise, cloudy, with a high near 64. Northeast wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Showers
    Likely and
    Patchy Fog
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Patchy fog before 2am. Otherwise, cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Patchy Fog

  • Monday

    Monday: Mostly sunny, with a high near 70. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 70 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers, mainly before 5pm. Cloudy, with a high near 62. Northeast wind around 5 mph. Chance of precipitation is 30%.
Tonight
A chance of showers after 3am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 57. Light northeast wind. Chance of precipitation is 30%.
Sunday
Showers likely, mainly before 10am. Patchy fog before 11am. Otherwise, cloudy, with a high near 64. Northeast wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Patchy fog before 2am. Otherwise, cloudy, with a low around 58. Calm wind.
Monday
Mostly sunny, with a high near 70. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.
Monday Night
Clear, with a low around 46.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Clear, with a low around 46.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrifield VA
 38.86°N 77.23°W (Elev. 348 ft)
Last Update:
2:23 pm EDT Oct 3, 2026
Forecast Valid:
4pm EDT Oct 3, 2026-6pm EDT Oct 10, 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