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

3°F

-16°C

Humidity 66%
Wind Speed Calm
Barometer 30.27 in
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Last update 27 Jan 10:35 pm CST
Extended Forecast for

4 Miles WNW Beloit WI

  • Tonight

    Tonight: Mostly clear, with a low around -3. Wind chill values between -10 and -15. West wind around 5 mph.

    Low: -3 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 13. Wind chill values between -5 and -15. West wind 5 to 15 mph.

    High: 13 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around -5. Wind chill values between -10 and -15. Northwest wind 5 to 10 mph.

    Low: -5 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 11. Wind chill values between -5 and -15. Northwest wind around 5 mph.

    High: 11 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around -4. North wind 5 to 10 mph.

    Low: -4 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 11. North wind 10 to 15 mph.

    High: 11 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 2. Northwest wind around 10 mph.

    Low: 2 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 19. North wind 5 to 10 mph.

    High: 19 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 3.

    Low: 3 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around -3. Wind chill values between -10 and -15. West wind around 5 mph.
Wednesday
Sunny, with a high near 13. Wind chill values between -5 and -15. West wind 5 to 15 mph.
Wednesday Night
Mostly clear, with a low around -5. Wind chill values between -10 and -15. Northwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 11. Wind chill values between -5 and -15. Northwest wind around 5 mph.
Thursday Night
Mostly clear, with a low around -4. North wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 11. North wind 10 to 15 mph.
Friday Night
Mostly clear, with a low around 2. Northwest wind around 10 mph.
Saturday
Sunny, with a high near 19. North wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 3.
Sunday
A 30 percent chance of snow, mainly after noon. Mostly sunny, with a high near 23.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 12.
Monday
Mostly cloudy, with a high near 24.
Monday Night
Mostly cloudy, with a low around 9.
Tuesday
Partly sunny, with a high near 25.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Beloit WI
 42.54°N 89.1°W (Elev. 889 ft)
Last Update:
9:38 pm CST Jan 27, 2026
Forecast Valid:
10pm CST Jan 27, 2026-6pm CST Feb 3, 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