Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Mostly Cloudy

75°F

24°C

Humidity 52%
Wind Speed S 8 mph
Barometer 30.13 in (1020.6 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 13 Apr 10:55 am EDT
Extended Forecast for

Mount Vernon VA

  • This Afternoon

    This Afternoon: Isolated showers after 1pm.  Partly sunny, with a high near 82. Southwest wind around 17 mph, with gusts as high as 31 mph.  Chance of precipitation is 20%.

    High: 82 °F

    Isolated
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 63. Southwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 90 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68. Southwest wind 3 to 6 mph.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 93. Southwest wind 3 to 7 mph.

    High: 93 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 92.

    High: 92 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Isolated showers after 1pm. Partly sunny, with a high near 82. Southwest wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 63. Southwest wind 5 to 7 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 90. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 68. Southwest wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 93. Southwest wind 3 to 7 mph.
Wednesday Night
Mostly cloudy, with a low around 70.
Thursday
Partly sunny, with a high near 92.
Thursday Night
Mostly cloudy, with a low around 70.
Friday
Mostly sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.74°N 77.11°W (Elev. 49 ft)
10:53 am EDT Apr 13, 2026
12pm EDT Apr 13, 2026-6pm EDT Apr 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database