Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

87°F

31°C

Humidity 34%
Wind Speed SW 6 mph
Barometer 29.96 in (1014.8 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 15 Apr 11:55 am EDT
Extended Forecast for

Annandale VA

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. Southwest wind 7 to 9 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 70. Southwest wind 5 to 7 mph.

    Low: 70 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 92. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 92 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 2am.  Mostly cloudy, with a low around 70. Southwest wind 6 to 8 mph becoming west after midnight.  Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, mainly after 2pm.  Partly sunny, with a high near 83. West wind 6 to 8 mph.  Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm.  Mostly clear, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers.  Mostly cloudy, with a low around 58. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers.  Mostly cloudy, with a high near 69. Chance of precipitation is 50%.

    High: 69 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 91. Southwest wind 7 to 9 mph.
Tonight
Partly cloudy, with a low around 70. Southwest wind 5 to 7 mph.
Thursday
Partly sunny, with a high near 92. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 70. Southwest wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 30%.
Friday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 83. West wind 6 to 8 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Mostly clear, with a low around 64. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Sunday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 50%.
Sunday Night
A chance of showers before 2am. Partly cloudy, with a low around 43. Chance of precipitation is 30%.
Monday
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Annandale VA
 38.84°N 77.23°W (Elev. 279 ft)
10:53 am EDT Apr 15, 2026
12pm EDT Apr 15, 2026-6pm EDT Apr 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

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