Flash Flood Concerns in Mid-Atlantic, Severe Weather Threats in Upper Midwest, and Fire Weather in the West

Once again, heavy rain and thunderstorms may produce flash flooding across the Mid-Atlantic region today. Flash flood watches are in effect, which includes the Philadelphia and Washington D.C. metro areas. Meanwhile, severe thunderstorms with damaging winds and large hail are possible from North Dakota into Minnesota. Finally, red flag warnings are in effect across several states in the West. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

81°F

27°C

Humidity 74%
Wind Speed Calm
Barometer 30.05 in (1017.8 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 7 Aug 7:56 pm EDT
Extended Forecast for

3 Miles SE Mount Vernon VA

Flash Flood Watch until August 8, 02:00am
Click here for hazard details and duration
Flash Flood Watch
  •  
    Flash Flood Watch until August 8, 02:00am

    NOW until
    2:00am Sat

    Flash Flood Watch

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 11pm, then scattered showers and thunderstorms between 11pm and 2am, then a chance of showers after 2am.  Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 70. East wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Showers
    Likely and
    Patchy Fog

    Low: 70 °F

  • Saturday

    Saturday: A chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm.  Patchy fog before 8am.  Otherwise, partly sunny, with a high near 89. North wind 3 to 5 mph.  Chance of precipitation is 30%.

    Chance
    Showers and
    Patchy Fog
    then Slight
    Chance
    T-storms

    High: 89 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 71. Light and variable wind.

    Partly Cloudy

    Low: 71 °F

  • Sunday

    Sunday: Partly sunny, with a high near 90. Light and variable wind.

    Partly Sunny

    High: 90 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm  after midnight.

    Partly Cloudy

    Low: 72 °F

  • Monday

    Monday: Mostly sunny, with a high near 92.

    Mostly Sunny

    High: 92 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 73.

    Mostly Clear

    Low: 73 °F

  • Tuesday

    Tuesday: A chance of showers.  Mostly sunny, with a high near 93. Chance of precipitation is 30%.

    Chance
    Showers

    High: 93 °F

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before 11pm, then scattered showers and thunderstorms between 11pm and 2am, then a chance of showers after 2am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 70. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 89. North wind 3 to 5 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 71. Light and variable wind.
Sunday
Partly sunny, with a high near 90. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 73.
Tuesday
A chance of showers. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
Showers likely. Mostly sunny, with a high near 92. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Thursday
Showers likely. Mostly sunny, with a high near 89. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Friday
Showers likely. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Click Map For Forecast
Point Forecast:
3 Miles SE Mount Vernon VA
 38.69°N 77.06°W (Elev. 144 ft)
7:32 pm EDT Aug 7, 2020
8pm EDT Aug 7, 2020-6pm EDT Aug 14, 2020
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database