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

1°F

-17°C

Humidity 92%
Wind Speed Calm
Barometer 30.37 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Last update 1 Feb 12:35 am CST
Extended Forecast for

4 Miles WNW Beloit WI

  • Overnight

    Overnight: Mostly clear, with a low around 1. Wind chill values between -5 and zero. Calm wind becoming south around 5 mph.

    Low: 1 °F

    Mostly Clear

  • Sunday

    Sunday: A 50 percent chance of snow, mainly after noon. Partly sunny, with a high near 24. Wind chill values between -10 and zero. South wind 5 to 10 mph.

    High: 24 °F

    Slight Chance
    Snow then
    Chance Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 16. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 16 °F

    Snow Likely
    then Slight
    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 25. Northwest wind 5 to 10 mph.

    High: 25 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 9. Northwest wind around 5 mph.

    Low: 9 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 21. North wind around 5 mph.

    High: 21 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 4. North wind around 5 mph becoming calm in the evening.

    Low: 4 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 22. West wind around 5 mph.

    High: 22 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 9.

    Low: 9 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 1. Wind chill values between -5 and zero. Calm wind becoming south around 5 mph.
Sunday
A 50 percent chance of snow, mainly after noon. Partly sunny, with a high near 24. Wind chill values between -10 and zero. South wind 5 to 10 mph.
Sunday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 16. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 25. Northwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 9. Northwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 21. North wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 4. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 22. West wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 9.
Thursday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 32.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 26.
Friday
A 20 percent chance of snow. Mostly cloudy, with a high near 33.
Friday Night
Mostly cloudy, with a low around 8.
Saturday
Partly sunny, with a high near 21.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Beloit WI
 42.54°N 89.1°W (Elev. 889 ft)
Last Update:
12:32 am CST Feb 1, 2026
Forecast Valid:
12am CST Feb 1, 2026-6pm CST Feb 7, 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