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

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

18°F

-8°C

Humidity 58%
Wind Speed N 7 mph
Barometer 30.32 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 7 Feb 12:35 am CST
Extended Forecast for

4 Miles S Fort Atkinson WI

  • Overnight

    Overnight: Clear, with a low around 5. Wind chill values between -5 and zero. North wind 5 to 10 mph.

    Low: 5 °F

    Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 20. Wind chill values between -5 and 5. North wind around 5 mph becoming calm in the morning.

    High: 20 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A slight chance of snow between 8pm and 11pm. Mostly cloudy, with a low around 17. Calm wind becoming southeast around 5 mph in the evening. Chance of precipitation is 20%.

    Low: 17 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 29. Southeast wind 5 to 10 mph.

    High: 29 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 19. Southeast wind around 5 mph.

    Low: 19 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 39. Southwest wind 5 to 10 mph.

    High: 39 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32. South wind around 5 mph.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 46. Northwest wind 5 to 10 mph.

    High: 46 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Slight Chance
    Snow

Detailed Forecast

Overnight
Clear, with a low around 5. Wind chill values between -5 and zero. North wind 5 to 10 mph.
Saturday
Increasing clouds, with a high near 20. Wind chill values between -5 and 5. North wind around 5 mph becoming calm in the morning.
Saturday Night
A slight chance of snow between 8pm and 11pm. Mostly cloudy, with a low around 17. Calm wind becoming southeast around 5 mph in the evening. Chance of precipitation is 20%.
Sunday
Mostly cloudy, with a high near 29. Southeast wind 5 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 19. Southeast wind around 5 mph.
Monday
Partly sunny, with a high near 39. Southwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 32. South wind around 5 mph.
Tuesday
Partly sunny, with a high near 46. Northwest wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 27.
Wednesday
Mostly cloudy, with a high near 36.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 22.
Thursday
A 30 percent chance of snow. Partly sunny, with a high near 38.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 24.
Friday
A 20 percent chance of snow. Partly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Fort Atkinson WI
 42.86°N 88.85°W (Elev. 899 ft)
Last Update:
12:22 am CST Feb 7, 2026
Forecast Valid:
12am CST Feb 7, 2026-6pm CST Feb 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation