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

32°F

0°C

Humidity 69%
Wind Speed Calm
Barometer 30.12 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 25 Mar 10:35 pm CDT
Extended Forecast for

5 Miles SSW Janesville WI

  • Tonight

    Tonight: Increasing clouds, with a low around 30. Northeast wind around 5 mph becoming calm.

    Low: 30 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 52. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 52 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm, then a chance of rain and snow between 11pm and 2am, then rain likely after 2am. Mostly cloudy, with a low around 34. West wind around 5 mph becoming southwest after midnight. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 34 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Rain likely, mainly before 7am. Mostly cloudy, with a high near 55. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Rain Likely
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 42. Southeast wind around 10 mph.

    Low: 42 °F

    Chance Rain

  • Friday

    Friday: A 30 percent chance of rain, mainly before 1pm. Partly sunny, with a high near 70. Breezy, with a southeast wind 10 to 15 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 70 °F

    Chance Rain
    and Breezy

  • Friday Night

    Friday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 53. Breezy, with a south wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 53 °F

    Chance Rain
    and Breezy

  • Saturday

    Saturday: Rain likely. Mostly cloudy, with a high near 67. South wind 10 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 67 °F

    Rain Likely

  • Saturday Night

    Saturday Night: Rain. Low around 44. Chance of precipitation is 90%.

    Low: 44 °F

    Rain

Detailed Forecast

Tonight
Increasing clouds, with a low around 30. Northeast wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 52. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Wednesday Night
A chance of rain before 11pm, then a chance of rain and snow between 11pm and 2am, then rain likely after 2am. Mostly cloudy, with a low around 34. West wind around 5 mph becoming southwest after midnight. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
Rain likely, mainly before 7am. Mostly cloudy, with a high near 55. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 42. Southeast wind around 10 mph.
Friday
A 30 percent chance of rain, mainly before 1pm. Partly sunny, with a high near 70. Breezy, with a southeast wind 10 to 15 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 53. Breezy, with a south wind 15 to 20 mph, with gusts as high as 25 mph.
Saturday
Rain likely. Mostly cloudy, with a high near 67. South wind 10 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain. Low around 44. Chance of precipitation is 90%.
Sunday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.
Sunday Night
Rain and snow likely. Mostly cloudy, with a low around 28. Chance of precipitation is 60%.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
9:09 pm CDT Mar 25, 2025
Forecast Valid:
10pm CDT Mar 25, 2025-6pm CDT Apr 1, 2025
 
Forecast Discussion
 
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Additional Resources

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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