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.

Partly Cloudy

54°F

12°C

Humidity 47%
Wind Speed N 9 mph
Barometer 30.31 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 10 Apr 5:45 pm CDT
Extended Forecast for

5 Miles SSW Janesville WI

  • Tonight

    Tonight: Mostly clear, with a low around 33. North wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 52. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 52 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Cloudy, with a low around 46. Southeast wind 10 to 15 mph. Chance of precipitation is 40%.

    Low: 46 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 75. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Breezy.
    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Cloudy, with a low around 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers
    Likely and
    Breezy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. Southwest wind around 15 mph.

    High: 77 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind around 10 mph.

    Low: 63 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 80. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 60. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 33. North wind around 5 mph becoming calm in the evening.
Saturday
A slight chance of showers between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 52. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Cloudy, with a low around 46. Southeast wind 10 to 15 mph. Chance of precipitation is 40%.
Sunday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 75. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Cloudy, with a low around 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. Southwest wind around 15 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind around 10 mph.
Tuesday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 80. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 60. Chance of precipitation is 80%.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 72. Chance of precipitation is 50%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Thursday Night
A 40 percent chance of showers. Partly cloudy, with a low around 53.
Friday
A 40 percent chance of showers. Mostly sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...
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:
4:33 pm CDT Apr 10, 2026
Forecast Valid:
6pm CDT Apr 10, 2026-6pm CDT Apr 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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