Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

14°F

-10°C

Humidity 92%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 3 Feb 2:10 am CST
Extended Forecast for

Janesville WI

  • Overnight

    Overnight: Mostly cloudy, with a low around 11. Calm wind becoming north around 5 mph.

    Low: 11 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 22. North wind around 5 mph.

    High: 22 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 3. North wind around 5 mph becoming calm.

    Low: 3 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 23. Calm wind becoming northwest around 5 mph.

    High: 23 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 8. Calm wind becoming west around 5 mph.

    Low: 8 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 32. Southwest wind 5 to 10 mph.

    High: 32 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 26. Southwest wind around 10 mph becoming northwest after midnight.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 37. Northwest wind 10 to 15 mph.

    High: 37 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 11. Calm wind becoming north around 5 mph.
Tuesday
Sunny, with a high near 22. North wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 3. North wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 23. Calm wind becoming northwest around 5 mph.
Wednesday Night
Increasing clouds, with a low around 8. Calm wind becoming west around 5 mph.
Thursday
Mostly cloudy, with a high near 32. Southwest wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 26. Southwest wind around 10 mph becoming northwest after midnight.
Friday
Partly sunny, with a high near 37. Northwest wind 10 to 15 mph.
Friday Night
Partly cloudy, with a low around 12.
Saturday
Partly sunny, with a high near 28.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 16.
Sunday
Partly sunny, with a high near 29.
Sunday Night
Mostly cloudy, with a low around 16.
Monday
Partly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
Janesville WI
 42.67°N 89.04°W (Elev. 774 ft)
1:32 am CST Feb 3, 2026
2am CST Feb 3, 2026-6pm CST Feb 9, 2026
 
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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