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

Hazardous Weather Conditions

Current conditions at

Lake Anna Airport (K7W4)

Lat: 37.97°NLon: 77.75°WElev: 351ft.

Fair

88°F

31°C

Humidity 67%
Wind Speed NE 5 mph
Barometer 30.10 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 2 Jul 10:15 am EDT
Extended Forecast for

3 Miles S Thornburg VA

Extreme Heat Warning until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning until July 3, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Today

    High: 102 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 76. Calm wind.

    Low: 76 °F

    Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 102. Heat index values as high as 110. Light southwest wind. Chance of precipitation is 20%.

    High: 102 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 78. Calm wind.

    Low: 78 °F

    Mostly Clear

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 102. Light southwest wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 102 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Chance of precipitation is 50%.

    High: 99 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 102. Heat index values as high as 109. Light and variable wind.
Tonight
Clear, with a low around 76. Calm wind.
Friday
A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 102. Heat index values as high as 110. Light southwest wind. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 78. Calm wind.
Independence Day
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 102. Light southwest wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.
Monday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 95. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 89. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Thornburg VA
 38.09°N 77.53°W (Elev. 249 ft)
Last Update:
3:24 am EDT Jul 2, 2026
Forecast Valid:
10am EDT Jul 2, 2026-6pm EDT Jul 8, 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