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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

1°F

-17°C

Humidity 71%
Wind Speed Calm
Barometer 30.25 in
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Last update 27 Jan 11:35 pm CST
Extended Forecast for

Janesville WI

  • Tonight

    Tonight: Mostly clear, with a low around -2. Wind chill values between -10 and -15. West wind around 5 mph.

    Low: -2 °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 -5 and -10. Northwest wind around 5 mph.

    Low: -5 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and cold, with a high near 10. Wind chill values between -10 and zero. Northwest wind around 5 mph.

    High: 10 °F

    Cold

  • Thursday Night

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

    Low: -4 °F

    Mostly Clear

  • Friday

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

    High: 11 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 2. Northwest wind 5 to 10 mph.

    Low: 2 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 18. North wind around 5 mph.

    High: 18 °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 -2. 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 -5 and -10. Northwest wind around 5 mph.
Thursday
Sunny and cold, with a high near 10. Wind chill values between -10 and zero. Northwest wind around 5 mph.
Thursday Night
Mostly clear, with a low around -4. North wind around 5 mph.
Friday
Mostly sunny, with a high near 11. North wind around 10 mph.
Friday Night
Partly cloudy, with a low around 2. Northwest wind 5 to 10 mph.
Saturday
Sunny, with a high near 18. North wind around 5 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 40 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
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Janesville WI
 42.67°N 89.04°W (Elev. 774 ft)
Last Update:
9:38 pm CST Jan 27, 2026
Forecast Valid:
11pm 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