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.

Fair

68°F

20°C

Humidity 88%
Wind Speed W 3 mph
Barometer 29.89 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 30 Jun 11:50 pm CDT
Extended Forecast for

5 Miles SSW Janesville WI

  • Overnight

    Overnight: Clear, with a low around 62. West wind around 5 mph.

    Low: 62 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. Northwest wind 5 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. Northwest wind around 5 mph.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. West wind 5 to 10 mph.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 64. West wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 87. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 67. South wind around 5 mph.

    Low: 67 °F

    Partly Cloudy

  • Independence Day

    Independence Day: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 91. South wind 5 to 15 mph.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Clear, with a low around 62. West wind around 5 mph.
Tuesday
Mostly sunny, with a high near 84. Northwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 63. Northwest wind around 5 mph.
Wednesday
Sunny, with a high near 86. West wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 64. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 87. Light southwest wind increasing to 5 to 10 mph in the morning.
Thursday Night
Partly cloudy, with a low around 67. South wind around 5 mph.
Independence Day
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 91. South wind 5 to 15 mph.
Friday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 72.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny and hot, with a high near 90. Chance of precipitation is 50%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 85.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 64.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
11:38 pm CDT Jun 30, 2025
Forecast Valid:
12am CDT Jul 1, 2025-6pm CDT Jul 7, 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