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

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 17 Aug 5:15 am EDT
Extended Forecast for

4 Miles SE Thornburg VA

  • Today

    Today: Sunny, with a high near 93. Heat index values as high as 100. Calm wind.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 79. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 68. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 30%.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: A chance of showers after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 93. Heat index values as high as 100. Calm wind.
Tonight
A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 79. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Wednesday Night
A chance of showers before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Thursday
A chance of showers after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 65.
Saturday
A chance of showers. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Thornburg VA
 38.08°N 77.47°W (Elev. 197 ft)
Last Update:
3:52 am EDT Aug 17, 2025
Forecast Valid:
6am EDT Aug 17, 2025-6pm EDT Aug 23, 2025
 
Forecast Discussion
 
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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