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.

Partly Cloudy

45°F

7°C

Humidity 99%
Wind Speed Calm
Barometer 29.75 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 6 Jan 6:55 pm EST
Extended Forecast for

Louisa VA

  • Tonight

    Tonight: Partly cloudy, with a low around 45. Southwest wind around 7 mph.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 63. Southwest wind around 6 mph becoming light and variable in the afternoon.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 58. Calm wind becoming south around 5 mph.

    High: 58 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 1am. Mostly cloudy, with a low around 44. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 44 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers. Cloudy, with a high near 67. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 1am. Cloudy, with a low around 55. Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers. High near 66. Chance of precipitation is 80%.

    High: 66 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 50%.

    Low: 46 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 45. Southwest wind around 7 mph.
Wednesday
Sunny, with a high near 63. Southwest wind around 6 mph becoming light and variable in the afternoon.
Wednesday Night
Mostly clear, with a low around 33. Calm wind.
Thursday
Mostly sunny, with a high near 58. Calm wind becoming south around 5 mph.
Thursday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 44. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 20%.
Friday
A chance of showers. Cloudy, with a high near 67. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers likely, mainly after 1am. Cloudy, with a low around 55. Chance of precipitation is 70%.
Saturday
Showers. High near 66. Chance of precipitation is 80%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 50%.
Sunday
A chance of showers before 1pm. Mostly sunny, with a high near 51. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 27.
Monday
Sunny, with a high near 46.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Louisa VA
 38.02°N 78°W (Elev. 413 ft)
Last Update:
12:40 pm EST Jan 6, 2026
Forecast Valid:
6pm EST Jan 6, 2026-6pm EST Jan 13, 2026
 
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