Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

24°F

-4°C

Humidity 31%
Wind Speed NW 9 mph
Barometer 30.27 in (1025.4 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 20 Jan 4:55 am EST
Extended Forecast for

Occoquan VA

  • Today

    Today: Sunny, with a high near 31. West wind 7 to 10 mph.

    High: 31 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 16. North wind around 5 mph becoming light and variable  in the evening.

    Low: 16 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 41. Light southeast wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 41 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 51. Southwest wind 6 to 10 mph.

    High: 51 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow.  Mostly cloudy, with a high near 21. Chance of precipitation is 40%.

    High: 21 °F

    Chance Snow

Detailed Forecast

Today
Sunny, with a high near 31. West wind 7 to 10 mph.
Tonight
Mostly clear, with a low around 16. North wind around 5 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 41. Light southeast wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 32. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 51. Southwest wind 6 to 10 mph.
Thursday Night
Partly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 40.
Friday Night
Mostly cloudy, with a low around 12.
Saturday
A chance of snow. Mostly cloudy, with a high near 21. Chance of precipitation is 40%.
Saturday Night
Snow likely. Cloudy, with a low around 14. Chance of precipitation is 70%.
Sunday
Snow likely. Mostly cloudy, with a high near 23. Chance of precipitation is 60%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 11. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
Occoquan VA
 38.69°N 77.26°W (Elev. 59 ft)
4:28 am EST Jan 20, 2026
5am EST Jan 20, 2026-6pm EST Jan 26, 2026
 
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Additional Resources

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