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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

72°F

22°C

Humidity 78%
Wind Speed S 13 mph
Barometer 29.89 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 13 Apr 1:45 pm CDT
Extended Forecast for

5 Miles SSW Janesville WI

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75. South wind around 15 mph.

    High: 75 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 4am, then a slight chance of showers. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 64. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely and
    Patchy Fog

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 81. Southwest wind around 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Patchy Fog
    then T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers after 4am. Low around 59. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 59 °F

    T-storms then
    Showers

  • Wednesday

    Wednesday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 71. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 71 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Cloudy, with a low around 57. South wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Showers
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers. Partly sunny, with a high near 72. Southwest wind 10 to 15 mph.

    High: 72 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52. West wind around 5 mph becoming east after midnight.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75. South wind around 15 mph.
Tonight
Showers and thunderstorms likely before 4am, then a slight chance of showers. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 64. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and thunderstorms likely, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 81. Southwest wind around 15 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 thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers after 4am. Low around 59. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 71. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Cloudy, with a low around 57. South wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 72. Southwest wind 10 to 15 mph.
Thursday Night
Mostly clear, with a low around 52. West wind around 5 mph becoming east after midnight.
Friday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 79.
Friday Night
Showers and possibly a thunderstorm. Low around 52. Chance of precipitation is 90%.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 60. Breezy.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 51.
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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:
2:37 pm CDT Apr 13, 2026
Forecast Valid:
2pm CDT Apr 13, 2026-6pm CDT Apr 19, 2026
 
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