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.

Partly Cloudy

43°F

6°C

Humidity 36%
Wind Speed NW 17 G 31 mph
Barometer 30.40 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 27 Mar 1:45 pm CDT
Extended Forecast for

5 Miles SSW Janesville WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 44. Northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 44 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 21. Northwest wind 10 to 15 mph becoming light after midnight.

    Low: 21 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 50. Light southwest wind increasing to 10 to 15 mph in the morning.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. South wind 10 to 15 mph.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 62. Southwest wind 10 to 15 mph.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. South wind 5 to 10 mph.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 74. South wind 5 to 15 mph.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 60. South wind 10 to 15 mph.

    Low: 60 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of rain, then rain likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.

    High: 71 °F

    Chance Rain
    then Rain
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 44. Northwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 21. Northwest wind 10 to 15 mph becoming light after midnight.
Saturday
Sunny, with a high near 50. Light southwest wind increasing to 10 to 15 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 36. South wind 10 to 15 mph.
Sunday
Mostly sunny, with a high near 62. Southwest wind 10 to 15 mph.
Sunday Night
Partly cloudy, with a low around 43. South wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 74. South wind 5 to 15 mph.
Monday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 60. South wind 10 to 15 mph.
Tuesday
A chance of rain, then rain likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Tuesday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Wednesday
A slight chance of rain and snow. Partly sunny, with a high near 46. Chance of precipitation is 20%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
1:21 pm CDT Mar 27, 2026
Forecast Valid:
1pm CDT Mar 27, 2026-6pm CDT Apr 2, 2026
 
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