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

41°F

5°C

Humidity 100%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 41°F (5°C)
Visibility 7.00 mi
Last update 19 Nov 3:35 am EST
Extended Forecast for

4 Miles ENE Thornburg VA

  • Overnight

    Overnight: Showers likely, mainly before 4am. Mostly cloudy, with a low around 41. Light south wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 56. Calm wind becoming north 5 to 7 mph in the morning.

    High: 56 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 53. Calm wind.

    High: 53 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of rain before 1pm. Cloudy, with a high near 61. Chance of precipitation is 20%.

    High: 61 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.

    Low: 51 °F

    Chance Rain
    then Rain
    Likely

  • Saturday

    Saturday: A chance of showers before 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 40%.

    High: 64 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Showers likely, mainly before 4am. Mostly cloudy, with a low around 41. Light south wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Partly sunny, with a high near 56. Calm wind becoming north 5 to 7 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 38. Calm wind.
Thursday
Mostly cloudy, with a high near 53. Calm wind.
Thursday Night
Mostly cloudy, with a low around 43. Calm wind.
Friday
A slight chance of rain before 1pm. Cloudy, with a high near 61. Chance of precipitation is 20%.
Friday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Saturday
A chance of showers before 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 64.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Thornburg VA
 38.15°N 77.46°W (Elev. 148 ft)
Last Update:
3:24 am EST Nov 19, 2025
Forecast Valid:
3am EST Nov 19, 2025-6pm EST Nov 25, 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