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

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

A Few Clouds

10°F

-12°C

Humidity 72%
Wind Speed Calm
Barometer 30.33 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Last update 3 Feb 8:45 pm CST
Extended Forecast for

5 Miles SW Fort Atkinson WI

  • Tonight

    Tonight: Mostly clear, with a low around 2. Calm wind.

    Low: 2 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 23. Calm wind becoming northwest around 5 mph.

    High: 23 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 8. Calm wind becoming southwest around 5 mph after midnight.

    Low: 8 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 32. Southwest wind 5 to 10 mph.

    High: 32 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 25. West wind 5 to 15 mph.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Snow

  • Friday

    Friday: Partly sunny, with a high near 38. Northwest wind 10 to 15 mph.

    High: 38 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 8. North wind 5 to 10 mph becoming light after midnight.

    Low: 8 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 26. Calm wind becoming south around 5 mph in the morning.

    High: 26 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Slight Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 2. Calm wind.
Wednesday
Sunny, with a high near 23. Calm wind becoming northwest around 5 mph.
Wednesday Night
Increasing clouds, with a low around 8. Calm wind becoming southwest around 5 mph after midnight.
Thursday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 32. Southwest wind 5 to 10 mph.
Thursday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 25. West wind 5 to 15 mph.
Friday
Partly sunny, with a high near 38. Northwest wind 10 to 15 mph.
Friday Night
Mostly clear, with a low around 8. North wind 5 to 10 mph becoming light after midnight.
Saturday
Mostly sunny, with a high near 26. Calm wind becoming south around 5 mph in the morning.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 19.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Mostly cloudy, with a low around 17.
Monday
Partly sunny, with a high near 35.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Fort Atkinson WI
 42.88°N 88.9°W (Elev. 814 ft)
Last Update:
7:33 pm CST Feb 3, 2026
Forecast Valid:
9pm CST Feb 3, 2026-6pm CST Feb 10, 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