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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

64°F

18°C

Humidity 88%
Wind Speed S 17 G 23 mph
Barometer 29.79 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 14 Apr 9:45 am CDT
Extended Forecast for

5 Miles SSW Janesville WI

  • Today

    Today: A 40 percent chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 80. Southwest wind 10 to 15 mph.

    High: 80 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 10pm, then showers likely and possibly a thunderstorm after 10pm. Patchy fog between 1am and 2am. Low around 61. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    T-storms then
    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Patchy fog between 9am and 11am. High near 73. South wind 5 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 73 °F

    Showers
    Likely and
    Patchy Fog
    then Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Southwest wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Showers
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers. Partly sunny, with a high near 70. West wind around 10 mph.

    High: 70 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52. West wind around 5 mph becoming southeast after midnight.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 75. South wind 5 to 15 mph.

    High: 75 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 50. South wind around 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 62. Breezy.

    High: 62 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 80. Southwest wind 10 to 15 mph.
Tonight
Showers and thunderstorms, mainly before 10pm, then showers likely and possibly a thunderstorm after 10pm. Patchy fog between 1am and 2am. Low around 61. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers and possibly a thunderstorm. Patchy fog between 9am and 11am. High near 73. South wind 5 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Southwest wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 70. West wind around 10 mph.
Thursday Night
Partly cloudy, with a low around 52. West wind around 5 mph becoming southeast after midnight.
Friday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 75. South wind 5 to 15 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 50. South wind around 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 62. Breezy.
Saturday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Mostly clear, with a low around 32.
Monday
Sunny, with a high near 58.
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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:
9:37 am CDT Apr 14, 2026
Forecast Valid:
9am CDT Apr 14, 2026-6pm CDT Apr 20, 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