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

Severe Thunderstorms for Mid-Atlantic and Northeast; Typhoon Approaching Guam

A cold front will sweep eastward today accompanied by strong to severe thunderstorms for the mid-Atlantic and Northeast today. In the wake of this cold front, autumn like temperatures and gusty winds from the Plains, Mississippi Valley, Great Lakes to most of the eastern seaboard. Fire weather conditions for lower Mississippi Valley into portions of California. For Guam, a typhoon is approaching. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Mostly Cloudy

74°F

23°C

Humidity 80%
Wind Speed S 7 mph
Barometer 29.79 in (1009.0 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 16 Oct 12:55 pm EDT
Extended Forecast for

Mount Vernon VA

Severe T-storm Watch until October 16, 08:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until October 16, 08:00pm

    NOW until 8:00pm Fri

    Severe T-storm Watch

  • This Afternoon

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. Northwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 55. North wind 16 to 18 mph, with gusts as high as 28 mph.

    High: 55 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. North wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58. North wind around 7 mph.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. South wind around 11 mph, with gusts as high as 21 mph.
Tonight
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. Northwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 55. North wind 16 to 18 mph, with gusts as high as 28 mph.
Saturday Night
Mostly clear, with a low around 39. North wind 7 to 10 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 58. North wind around 7 mph.
Sunday Night
Mostly clear, with a low around 42.
Monday
Mostly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.72°N 77.11°W (Elev. 36 ft)
Last Update:
10:53 am EDT Oct 16, 2026
Forecast Valid:
1pm EDT Oct 16, 2026-6pm EDT Oct 22, 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