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.

Mostly Cloudy

70°F

21°C

Humidity 57%
Wind Speed N 7 mph
Barometer 29.78 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 18 Jun 1:45 pm CDT
Extended Forecast for

Clinton WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 72. Northwest wind around 10 mph.

    High: 72 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. West wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 76. Northwest wind 5 to 15 mph.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 10pm. Partly cloudy, with a low around 55. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers
    Likely then
    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 77. West wind 5 to 15 mph.

    High: 77 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. East wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 72 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 53. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 53 °F

    Chance
    Showers and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 72. Northwest wind around 10 mph.
Tonight
Mostly clear, with a low around 53. West wind around 5 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 76. Northwest wind 5 to 15 mph.
Friday Night
Showers and thunderstorms likely, mainly before 10pm. Partly cloudy, with a low around 55. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 77. West wind 5 to 15 mph.
Saturday Night
Partly cloudy, with a low around 54. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. East wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 53. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clinton WI
 42.55°N 88.87°W (Elev. 938 ft)
Last Update:
1:21 pm CDT Jun 18, 2026
Forecast Valid:
2pm CDT Jun 18, 2026-6pm CDT Jun 24, 2026
 
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