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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Partly Cloudy and Windy

61°F

16°C

Humidity 48%
Wind Speed NE 26 G 32 mph
Barometer 29.77 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 26 Mar 12:45 pm CDT
Extended Forecast for

Janesville WI

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers after 2pm. High near 62. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Showers and
    Breezy

  • Tonight

    Tonight: Showers, mainly before 8pm. Low around 24. Blustery, with a north wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 24 °F

    Blustery.
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44. North wind 10 to 15 mph.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 22. Northwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight.

    Low: 22 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 48. Light southwest wind increasing to 10 to 15 mph in the morning.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. South wind around 10 mph.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 62. South wind 10 to 15 mph.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46. South wind around 10 mph.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers after 2pm. High near 62. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers, mainly before 8pm. Low around 24. Blustery, with a north wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly sunny, with a high near 44. North wind 10 to 15 mph.
Friday Night
Mostly clear, with a low around 22. Northwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight.
Saturday
Mostly sunny, with a high near 48. Light southwest wind increasing to 10 to 15 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 36. South wind around 10 mph.
Sunday
Mostly sunny, with a high near 62. South wind 10 to 15 mph.
Sunday Night
Partly cloudy, with a low around 46. South wind around 10 mph.
Monday
Mostly sunny, with a high near 70.
Monday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 44. Chance of precipitation is 50%.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 61.
Tuesday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 48.
Wednesday
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Janesville WI
 42.67°N 89.04°W (Elev. 774 ft)
Last Update:
1:13 pm CDT Mar 26, 2026
Forecast Valid:
1pm CDT Mar 26, 2026-6pm CDT Apr 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation