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

70°F

21°C

Humidity 78%
Wind Speed S 8 mph
Barometer 29.71 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 13 Apr 9:10 pm CDT
Extended Forecast for

3 Miles ESE Avalon WI

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 4am. Low around 61. South wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    Mostly Cloudy
    then T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. Southwest wind 10 to 15 mph.

    High: 79 °F

    Partly Sunny
    then Chance
    T-storms

  • 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 58. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 58 °F

    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 70. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 70 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 56. South wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Showers

  • Thursday

    Thursday: A 50 percent chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 72. Southwest wind 10 to 15 mph.

    High: 72 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50. West wind 5 to 10 mph becoming east after midnight.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 79. South wind 5 to 15 mph.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 52. Chance of precipitation is 90%.

    Low: 52 °F

    Showers

Detailed Forecast

Tonight
Showers and thunderstorms, mainly before 4am. Low around 61. South wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 30 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. Southwest wind 10 to 15 mph.
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 58. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 70. 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 and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 56. South wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A 50 percent chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 72. Southwest wind 10 to 15 mph.
Thursday Night
Partly cloudy, with a low around 50. West wind 5 to 10 mph becoming east after midnight.
Friday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 79. South wind 5 to 15 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 52. Chance of precipitation is 90%.
Saturday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 60. Breezy. Chance of precipitation is 50%.
Saturday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 31. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Avalon WI
 42.64°N 88.77°W (Elev. 912 ft)
Last Update:
9:02 pm CDT Apr 13, 2026
Forecast Valid:
9pm CDT Apr 13, 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