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

79°F

26°C

Humidity 55%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 25 Aug 6:35 pm EDT
Extended Forecast for

4 Miles ENE Thornburg VA

  • Tonight

    Tonight: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms between 3am and 4am, then a slight chance of thunderstorms after 4am. Mostly cloudy, with a low around 69. Southeast wind around 6 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 87. South wind 5 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers after 8am. Mostly cloudy, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. Calm wind.
Wednesday
Mostly sunny, with a high near 87. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms between 3am and 4am, then a slight chance of thunderstorms after 4am. Mostly cloudy, with a low around 69. Southeast wind around 6 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 87. South wind 5 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Saturday
A chance of showers after 8am. Mostly cloudy, with a high near 84. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Mostly sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Thornburg VA
 38.15°N 77.46°W (Elev. 148 ft)
Last Update:
4:12 pm EDT Aug 25, 2026
Forecast Valid:
8pm EDT Aug 25, 2026-6pm EDT Sep 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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