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.

Fair

34°F

1°C

Humidity 32%
Wind Speed W 14 mph
Barometer 29.72 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 25 Feb 3:45 pm CST
Extended Forecast for

5 Miles SW Fort Atkinson WI

  • Tonight

    Tonight: Mostly clear, with a low around 15. Northwest wind around 5 mph becoming calm in the evening.

    Low: 15 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 40. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 40 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27. Southwest wind around 5 mph.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 57. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25. West wind 5 to 10 mph becoming northwest after midnight.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Snow likely, mainly after noon. Cloudy, with a high near 31. North wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 31 °F

    Chance Snow
    then Snow
    Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 13. North wind around 5 mph.

    Low: 13 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Sunny through mid morning, then becoming mostly cloudy, with a high near 28. Northeast wind around 5 mph.

    High: 28 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow. Cloudy during the early evening, then gradual clearing, with a low around 15.

    Low: 15 °F

    Slight Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 15. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 40. Light southwest wind increasing to 5 to 10 mph in the morning.
Thursday Night
Mostly clear, with a low around 27. Southwest wind around 5 mph.
Friday
Mostly sunny, with a high near 57. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 25. West wind 5 to 10 mph becoming northwest after midnight.
Saturday
Snow likely, mainly after noon. Cloudy, with a high near 31. North wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 13. North wind around 5 mph.
Sunday
A 20 percent chance of snow after noon. Sunny through mid morning, then becoming mostly cloudy, with a high near 28. Northeast wind around 5 mph.
Sunday Night
A 20 percent chance of snow. Cloudy during the early evening, then gradual clearing, with a low around 15.
Monday
Mostly sunny, with a high near 35.
Monday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 20.
Tuesday
A 30 percent chance of snow. Mostly sunny, with a high near 40.
Tuesday Night
Mostly clear, with a low around 24.
Wednesday
Sunny, with a high near 47.
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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:
3:36 pm CST Feb 25, 2026
Forecast Valid:
3pm CST Feb 25, 2026-6pm CST Mar 4, 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