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

-4°F

-20°C

Humidity 100%
Wind Speed NW 6 mph
Barometer 30.39 in
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-17°F (-27°C)
Last update 4 Dec 6:45 am CST
Extended Forecast for

Beloit WI

  • Today

    Today: Sunny, with a high near 15. Wind chill values between -10 and zero. Calm wind becoming south around 5 mph in the afternoon.

    High: 15 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 1. Wind chill values between -5 and -10. South wind 5 to 10 mph.

    Low: 1 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 26. Wind chill values between -5 and 5. Southwest wind around 10 mph.

    High: 26 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 18. Southwest wind 5 to 10 mph becoming west after midnight.

    Low: 18 °F

    Chance Snow
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 26. Northwest wind around 5 mph.

    High: 26 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 8. North wind around 5 mph.

    Low: 8 °F

    Chance Snow

  • Sunday

    Sunday: A 20 percent chance of snow before noon. Mostly sunny, with a high near 18. North wind 5 to 10 mph.

    High: 18 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 0. North wind around 5 mph becoming calm in the evening.

    Low: 0 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 21.

    High: 21 °F

    Partly Sunny
    then Slight
    Chance Snow

Detailed Forecast

Today
Sunny, with a high near 15. Wind chill values between -10 and zero. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 1. Wind chill values between -5 and -10. South wind 5 to 10 mph.
Friday
Partly sunny, with a high near 26. Wind chill values between -5 and 5. Southwest wind around 10 mph.
Friday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 18. Southwest wind 5 to 10 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 26. Northwest wind around 5 mph.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 8. North wind around 5 mph.
Sunday
A 20 percent chance of snow before noon. Mostly sunny, with a high near 18. North wind 5 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 0. North wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 21.
Monday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 12. Chance of precipitation is 60%.
Tuesday
A 20 percent chance of snow. Mostly cloudy, with a high near 31.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 17.
Wednesday
A 50 percent chance of snow. Mostly cloudy, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Beloit WI
 42.52°N 89.02°W (Elev. 745 ft)
Last Update:
4:41 am CST Dec 4, 2025
Forecast Valid:
7am CST Dec 4, 2025-6pm CST Dec 10, 2025
 
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