Heavy Rainfall and Flooding in the Southwest and Along the East Coast

A multi-day heavy rainfall event is set to begin across New Mexico into west Texas Tuesday through Wednesday. Flash flooding and debris flows in the vicinity of burn scars will also be possible. A strong coastal low will develop offshore of the Mid-Atlantic coast midweek, bringing heavy rainfall, strong winds and coastal flooding to much of the East Coast through Friday. Read More >

Current conditions at

Washington Manassas Airport (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Light Rain

66°F

19°C

Humidity 93%
Wind Speed NE 5 mph
Barometer 30.08 in (1019.2 mb)
Dewpoint 64°F (18°C)
Visibility 7.00 mi
Last update 21 Sep 8:56 pm EDT
Extended Forecast for

2 Miles NNW Bull Run VA

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am.  Low around 62. Northeast wind around 7 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Chance
    Showers then
    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm.  Patchy fog. High near 64. Northeast wind around 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 64 °F

    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Showers before 2am, then rain after 2am.  Patchy fog between 2am and 5am. Low around 55. Northeast wind around 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Low: 55 °F

    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Rain, mainly before 2pm.  Patchy fog between 8am and 11am. High near 64. Northeast wind 11 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F

    Rain and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A chance of rain before 2am.  Cloudy, with a low around 53. Northeast wind around 11 mph.  Chance of precipitation is 30%.

    Low: 53 °F

    Chance Rain

  • Thursday

    Thursday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 62. Northeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers and possibly a thunderstorm. Patchy fog. High near 64. Northeast wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers before 2am, then rain after 2am. Patchy fog between 2am and 5am. Low around 55. Northeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Wednesday
Rain, mainly before 2pm. Patchy fog between 8am and 11am. High near 64. Northeast wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of rain before 2am. Cloudy, with a low around 53. Northeast wind around 11 mph. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 53.
Monday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Bull Run VA
 38.81°N 77.53°W (Elev. 243 ft)
7:53 pm EDT Sep 21, 2026
9pm EDT Sep 21, 2026-6pm EDT Sep 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database