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

59°F

15°C

Humidity 36%
Wind Speed S 13 mph
Barometer 29.99 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 29 Mar 6:45 pm CDT
Extended Forecast for

Clinton WI

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 46. South wind around 10 mph.

    Low: 46 °F

    Gradual
    Clearing

  • Monday

    Monday: Mostly sunny, with a high near 76. South wind 5 to 10 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of rain and thunderstorms, mainly between 1am and 4am. Mostly cloudy, with a low around 61. South wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 61 °F

    Chance Rain
    then Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of rain and thunderstorms before 1pm, then rain and possibly a thunderstorm between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm. High near 71. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Breezy.
    Slight Chance
    T-storms then
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and thunderstorms before 7pm, then a chance of rain between 7pm and 1am. Mostly cloudy, with a low around 36. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    Low: 36 °F

    Chance Rain

  • Wednesday

    Wednesday: A slight chance of rain and snow after 1pm. Mostly cloudy, with a high near 44. Northeast wind around 15 mph. Chance of precipitation is 20%.

    High: 44 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow likely before 4am, then rain, snow, and freezing rain likely. Cloudy, with a low around 32. Windy, with a northeast wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 32 °F

    Wintry Mix
    Likely and
    Windy

  • Thursday

    Thursday: Rain, snow, and freezing rain likely before 7am, then rain and snow likely between 7am and 1pm, then rain likely after 1pm. Cloudy, with a high near 45. Windy, with a northeast wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Wintry Mix
    Likely and
    Windy

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 46. South wind around 10 mph.
Monday
Mostly sunny, with a high near 76. South wind 5 to 10 mph.
Monday Night
A 40 percent chance of rain and thunderstorms, mainly between 1am and 4am. Mostly cloudy, with a low around 61. South wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday
A slight chance of rain and thunderstorms before 1pm, then rain and possibly a thunderstorm between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm. High near 71. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of rain and thunderstorms before 7pm, then a chance of rain between 7pm and 1am. Mostly cloudy, with a low around 36. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Wednesday
A slight chance of rain and snow after 1pm. Mostly cloudy, with a high near 44. Northeast wind around 15 mph. Chance of precipitation is 20%.
Wednesday Night
Rain and snow likely before 4am, then rain, snow, and freezing rain likely. Cloudy, with a low around 32. Windy, with a northeast wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Rain, snow, and freezing rain likely before 7am, then rain and snow likely between 7am and 1pm, then rain likely after 1pm. Cloudy, with a high near 45. Windy, with a northeast wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 32.
Friday
A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 51.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Saturday
Rain likely. Mostly cloudy, with a high near 61. Chance of precipitation is 70%.
Saturday Night
Rain likely. Cloudy, with a low around 39. Chance of precipitation is 60%.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 51. Breezy.
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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:
6:31 pm CDT Mar 29, 2026
Forecast Valid:
7pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation