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.

Overcast

27°F

-3°C

Humidity 86%
Wind Speed S 9 mph
Barometer 29.96 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 11 Nov 5:45 am CST
Extended Forecast for

Janesville WI

  • Veterans Day

    Veterans Day: Cloudy, then gradually becoming mostly sunny, with a high near 41. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 41 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 33. West wind around 10 mph.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 49. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 49 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. West wind 5 to 10 mph.

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 52. Calm wind becoming west around 5 mph in the afternoon.

    High: 52 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. Southwest wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 57. Southeast wind 5 to 10 mph.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. Southeast wind 5 to 10 mph.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Veterans Day
Cloudy, then gradually becoming mostly sunny, with a high near 41. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 33. West wind around 10 mph.
Wednesday
Sunny, with a high near 49. West wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 27. West wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 52. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 32. Southwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 57. Southeast wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around 42. Southeast wind 5 to 10 mph.
Saturday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 64.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 45.
Sunday
A 30 percent chance of rain. Mostly sunny, with a high near 56.
Sunday Night
A 30 percent chance of rain. Mostly clear, with a low around 31.
Monday
A 30 percent chance of rain. Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Janesville WI
 42.69°N 89.01°W (Elev. 863 ft)
Last Update:
5:01 am CST Nov 11, 2025
Forecast Valid:
6am CST Nov 11, 2025-6pm CST Nov 17, 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