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.

Partly Cloudy

43°F

6°C

Humidity 29%
Wind Speed NE 9 G 17 mph
Barometer 30.42 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 23 Mar 2:45 pm CDT
Extended Forecast for

Clinton WISimilar City Names

  • This Afternoon

    This Afternoon: Sunny, with a high near 45. North wind around 10 mph.

    High: 45 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 28. Northeast wind 5 to 10 mph becoming south after midnight.

    Low: 28 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 53. Southwest wind 10 to 15 mph.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. South wind 5 to 10 mph.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 63. South wind 10 to 15 mph.

    High: 63 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 48. South wind around 5 mph.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain after 1pm. Partly sunny, with a high near 69. South wind 5 to 15 mph becoming north in the afternoon.

    High: 69 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 27. North wind around 15 mph.

    Low: 27 °F

    Slight Chance
    Rain

  • Friday

    Friday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 45. North wind around 10 mph.
Tonight
Increasing clouds, with a low around 28. Northeast wind 5 to 10 mph becoming south after midnight.
Tuesday
Partly sunny, with a high near 53. Southwest wind 10 to 15 mph.
Tuesday Night
Mostly cloudy, with a low around 36. South wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 63. South wind 10 to 15 mph.
Wednesday Night
Mostly cloudy, with a low around 48. South wind around 5 mph.
Thursday
A 40 percent chance of rain after 1pm. Partly sunny, with a high near 69. South wind 5 to 15 mph becoming north in the afternoon.
Thursday Night
A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 27. North wind around 15 mph.
Friday
Partly sunny, with a high near 43.
Friday Night
Mostly clear, with a low around 24.
Saturday
Sunny, with a high near 50.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Partly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clinton WISimilar City Names
 42.55°N 88.87°W (Elev. 938 ft)
Last Update:
2:32 pm CDT Mar 23, 2026
Forecast Valid:
2pm CDT Mar 23, 2026-6pm CDT Mar 29, 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