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.

Overcast

43°F

6°C

Humidity 61%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 27 Mar 3:15 am CDT
Extended Forecast for

5 Miles SSW Janesville WI

  • Overnight

    Overnight: A 20 percent chance of rain. Mostly cloudy, with a low around 41. Calm wind becoming west around 5 mph.

    Low: 41 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A 30 percent chance of rain, mainly before 8am. Mostly cloudy, with a high near 56. Southwest wind 5 to 15 mph.

    High: 56 °F

    Chance Rain
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A 50 percent chance of rain after 1am. Mostly cloudy, with a low around 44. Southeast wind 5 to 10 mph.

    Low: 44 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A 30 percent chance of rain and thunderstorms, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 75. Windy, with a southwest wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 75 °F

    Chance
    T-storms and
    Windy

  • Friday Night

    Friday Night: A chance of rain and thunderstorms between 1am and 4am, then a chance of rain after 4am. Partly cloudy, with a low around 54. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.

    Low: 54 °F

    Breezy.
    Mostly Clear
    then Chance
    Rain

  • Saturday

    Saturday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 63. Southwest wind 10 to 15 mph becoming east in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Chance Rain
    then Rain
    Likely

  • Saturday Night

    Saturday Night: Rain before 10pm, then rain and possibly a thunderstorm between 10pm and 1am, then rain after 1am. Low around 42. East wind 10 to 15 mph becoming south after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain

  • Sunday

    Sunday: Rain likely. Mostly cloudy, with a high near 52. East wind 10 to 15 mph becoming north in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 52 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.

    Low: 27 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Overnight
A 20 percent chance of rain. Mostly cloudy, with a low around 41. Calm wind becoming west around 5 mph.
Thursday
A 30 percent chance of rain, mainly before 8am. Mostly cloudy, with a high near 56. Southwest wind 5 to 15 mph.
Thursday Night
A 50 percent chance of rain after 1am. Mostly cloudy, with a low around 44. Southeast wind 5 to 10 mph.
Friday
A 30 percent chance of rain and thunderstorms, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 75. Windy, with a southwest wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.
Friday Night
A chance of rain and thunderstorms between 1am and 4am, then a chance of rain after 4am. Partly cloudy, with a low around 54. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.
Saturday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 63. Southwest wind 10 to 15 mph becoming east in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain before 10pm, then rain and possibly a thunderstorm between 10pm and 1am, then rain after 1am. Low around 42. East wind 10 to 15 mph becoming south after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Rain likely. Mostly cloudy, with a high near 52. East wind 10 to 15 mph becoming north in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Monday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
A slight chance of rain and snow. Partly sunny, with a high near 45. Chance of precipitation is 20%.
Tuesday Night
Rain and snow likely. Mostly cloudy, with a low around 33. Chance of precipitation is 70%.
Wednesday
Rain likely. Mostly cloudy, with a high near 57. Chance of precipitation is 70%.
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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:
3:08 am CDT Mar 27, 2025
Forecast Valid:
3am CDT Mar 27, 2025-6pm CDT Apr 2, 2025
 
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