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

46°F

8°C

Humidity 62%
Wind Speed SW 10 mph
Barometer 29.67 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 9 Mar 5:45 am CDT
Extended Forecast for

Clinton WI

  • Today

    Today: Sunny, with a high near 68. Southwest wind 10 to 15 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. Southeast wind around 5 mph.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Patchy fog between 8am and 9am. Otherwise, partly sunny, with a high near 58. East wind 5 to 15 mph. Chance of precipitation is 30%.

    High: 58 °F

    Patchy Fog
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Patchy fog before 1am. Low around 34. Northeast wind around 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 34 °F

    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Rain likely, possibly mixed with snow showers before 4pm, then a chance of snow showers. Cloudy, with a high near 41. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 41 °F

    Rain/Snow
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind 5 to 15 mph.

    Low: 24 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Increasing clouds, with a high near 45. West wind 5 to 15 mph becoming south in the afternoon.

    High: 45 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Rain and snow. Low around 34. Windy, with a south wind 15 to 25 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: 34 °F

    Rain/Snow and
    Windy

  • Friday

    Friday: A slight chance of rain and snow before 1pm. Mostly sunny, with a high near 45. Windy. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Rain/Snow and
    Windy

Detailed Forecast

Today
Sunny, with a high near 68. Southwest wind 10 to 15 mph.
Tonight
Mostly clear, with a low around 44. Southeast wind around 5 mph.
Tuesday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Patchy fog between 8am and 9am. Otherwise, partly sunny, with a high near 58. East wind 5 to 15 mph. Chance of precipitation is 30%.
Tuesday Night
Showers and possibly a thunderstorm. Patchy fog before 1am. Low around 34. Northeast wind around 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Rain likely, possibly mixed with snow showers before 4pm, then a chance of snow showers. Cloudy, with a high near 41. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind 5 to 15 mph.
Thursday
Increasing clouds, with a high near 45. West wind 5 to 15 mph becoming south in the afternoon.
Thursday Night
Rain and snow. Low around 34. Windy, with a south wind 15 to 25 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
A slight chance of rain and snow before 1pm. Mostly sunny, with a high near 45. Windy. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 26.
Saturday
A chance of rain and snow. Cloudy, with a high near 43. Chance of precipitation is 40%.
Saturday Night
A chance of rain and snow. Cloudy, with a low around 31. Chance of precipitation is 50%.
Sunday
Rain and snow likely. Cloudy, with a high near 44. Breezy. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clinton WI
 42.55°N 88.87°W (Elev. 938 ft)
Last Update:
5:34 am CDT Mar 9, 2026
Forecast Valid:
6am CDT Mar 9, 2026-6pm CDT Mar 15, 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