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.

Partly Cloudy

90°F

32°C

Humidity 43%
Wind Speed W 8 mph
Barometer 29.98 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 3 Jul 5:45 pm CDT
Extended Forecast for

5 Miles SSW Janesville WI

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 69. Southwest wind around 5 mph becoming east after midnight.

    Low: 69 °F

    Partly Cloudy
    then Chance
    T-storms

  • Independence Day

    Independence Day: Showers and thunderstorms likely, mainly before noon. Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 95. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 89 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 69. South wind 5 to 10 mph.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 95. Southwest wind 10 to 15 mph.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southwest wind 10 to 15 mph.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 84. West wind around 10 mph becoming north in the afternoon. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62. North wind 5 to 10 mph.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 84. North wind around 5 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 69. Southwest wind around 5 mph becoming east after midnight.
Independence Day
Showers and thunderstorms likely, mainly before noon. Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 95. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Mostly clear, with a low around 69. South wind 5 to 10 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 95. Southwest wind 10 to 15 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southwest wind 10 to 15 mph.
Sunday
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 84. West wind around 10 mph becoming north in the afternoon. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 62. North wind 5 to 10 mph.
Monday
Sunny, with a high near 84. North wind around 5 mph.
Monday Night
Mostly clear, with a low around 61.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
5:54 pm CDT Jul 3, 2025
Forecast Valid:
6pm CDT Jul 3, 2025-6pm CDT Jul 10, 2025
 
Forecast Discussion
 
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Additional Resources

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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