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

66°F

19°C

Humidity 73%
Wind Speed S 12 mph
Barometer 29.63 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 18 Apr 11:45 am CDT
Extended Forecast for

5 Miles SSW Janesville WI

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 73. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before midnight. Cloudy, with a low around 44. Northwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 59. Northwest wind 5 to 10 mph.

    High: 59 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40. North wind 5 to 10 mph becoming east after midnight.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 53. Breezy, with an east wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Chance
    Showers then
    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Steady temperature around 49. Breezy, with an east wind 15 to 20 mph becoming south after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 49 °F

    Showers and
    Breezy

  • Monday

    Monday: A 50 percent chance of showers. Mostly cloudy, with a high near 57. Breezy, with a southwest wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph.

    High: 57 °F

    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. West wind 5 to 15 mph.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 73. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before midnight. Cloudy, with a low around 44. Northwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Partly sunny, with a high near 59. Northwest wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 40. North wind 5 to 10 mph becoming east after midnight.
Sunday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 53. Breezy, with an east wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers and possibly a thunderstorm. Steady temperature around 49. Breezy, with an east wind 15 to 20 mph becoming south after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 57. Breezy, with a southwest wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph.
Monday Night
Partly cloudy, with a low around 37. West wind 5 to 15 mph.
Tuesday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 66.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 48.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 71.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 46.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 69.
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Forecast Area
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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:
12:08 pm CDT Apr 18, 2025
Forecast Valid:
12pm CDT Apr 18, 2025-6pm CDT Apr 24, 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