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

Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

83°F

28°C

Humidity 38%
Wind Speed SE 3 mph
Barometer 29.88 in (1012.1 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 16 Apr 11:55 am EDT
Extended Forecast for

Annandale VA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 93. South wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: Isolated showers after 11pm. Increasing clouds, with a low around 68. Southwest wind around 9 mph becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 68 °F

    Isolated
    Showers

  • Friday

    Friday: Partly sunny, with a high near 83. Northwest wind 7 to 11 mph.

    High: 83 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. North wind around 6 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Light east wind becoming south 6 to 11 mph in the morning.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.

    High: 62 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Partly cloudy, with a low around 40. Chance of precipitation is 30%.

    Low: 40 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 93. South wind 9 to 13 mph, with gusts as high as 20 mph.
Tonight
Isolated showers after 11pm. Increasing clouds, with a low around 68. Southwest wind around 9 mph becoming northwest after midnight. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 83. Northwest wind 7 to 11 mph.
Friday Night
Mostly clear, with a low around 62. North wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. Light east wind becoming south 6 to 11 mph in the morning.
Saturday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Sunday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Sunday Night
A chance of showers before 8pm. Partly cloudy, with a low around 40. Chance of precipitation is 30%.
Monday
Sunny, with a high near 56.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Annandale VA
 38.82°N 77.21°W (Elev. 331 ft)
Last Update:
10:54 am EDT Apr 16, 2026
Forecast Valid:
12pm EDT Apr 16, 2026-6pm EDT Apr 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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