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

Lake Anna Airport (K7W4)

Lat: 37.97°NLon: 77.75°WElev: 351ft.

Fair

38°F

3°C

Humidity 57%
Wind Speed SW 3 mph
Barometer 29.70 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 14 Jan 7:55 am EST
Extended Forecast for

4 Miles SSW Thornburg VA

  • Today

    Today: Increasing clouds, with a high near 56. Southwest wind 6 to 9 mph.

    High: 56 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of rain showers before 2am, then a chance of snow showers between 2am and 4am. Cloudy, then gradually becoming partly cloudy, with a low around 27. Southwest wind 7 to 11 mph becoming northwest after midnight. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 27 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Thursday

    Thursday: Sunny, with a high near 33. Northwest wind 13 to 15 mph, with gusts as high as 24 mph.

    High: 33 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 17. West wind 5 to 9 mph.

    Low: 17 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 39. South wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 39 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of rain and snow before 1pm. Partly sunny, with a high near 46. Chance of precipitation is 30%.

    High: 46 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 56. Southwest wind 6 to 9 mph.
Tonight
A chance of rain showers before 2am, then a chance of snow showers between 2am and 4am. Cloudy, then gradually becoming partly cloudy, with a low around 27. Southwest wind 7 to 11 mph becoming northwest after midnight. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday
Sunny, with a high near 33. Northwest wind 13 to 15 mph, with gusts as high as 24 mph.
Thursday Night
Mostly clear, with a low around 17. West wind 5 to 9 mph.
Friday
Mostly sunny, with a high near 39. South wind 5 to 10 mph, with gusts as high as 18 mph.
Friday Night
Partly cloudy, with a low around 30.
Saturday
A chance of rain and snow before 1pm. Partly sunny, with a high near 46. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 34.
Sunday Night
Mostly clear, with a low around 18.
M.L.King Day
Sunny, with a high near 37.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Thornburg VA
 38.07°N 77.53°W (Elev. 243 ft)
Last Update:
5:56 am EST Jan 14, 2026
Forecast Valid:
7am EST Jan 14, 2026-6pm EST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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