Showers and Thunderstorms from the Southern Plains into the Mid-Mississippi Valley; Record Warmth in the Plains and Midwest

Heavy rain and widely scattered severe storms capable of large hail, damaging winds, and possibly a tornado are expected over portions of the central and southern Plains into the Lower Missouri Valley. Unseasonable warmth will continue for a few more days across the Midwest and Southeast where several daily record highs could fall. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

66°F

19°C

Humidity 73%
Wind Speed W 13 mph
Barometer 29.85 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 13 Oct 9:45 am CDT
Extended Forecast for

Janesville WI

  • Today

    Today: Sunny, with a high near 76. West wind 5 to 10 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 2am.  Increasing clouds, with a low around 57. Calm wind.  Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 66. North wind 5 to 10 mph.

    High: 66 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50. East wind 5 to 10 mph.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, mainly after 1pm.  High near 61. East wind 5 to 10 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 61 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers before 1am.  Cloudy, then gradually becoming partly cloudy, with a low around 44. North wind 5 to 10 mph becoming northwest 10 to 15 mph after midnight. Winds could gust as high as 25 mph.

    Low: 44 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 55. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 55 °F

    Mostly Sunny
    and Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. North wind 5 to 10 mph becoming light  in the evening.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 76. West wind 5 to 10 mph.
Tonight
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 2am. Increasing clouds, with a low around 57. Calm wind. Chance of precipitation is 50%.
Wednesday
Mostly cloudy, with a high near 66. North wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 50. East wind 5 to 10 mph.
Thursday
Showers, mainly after 1pm. High near 61. East wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A 50 percent chance of showers before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 44. North wind 5 to 10 mph becoming northwest 10 to 15 mph after midnight. Winds could gust as high as 25 mph.
Friday
Mostly sunny, with a high near 55. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 35 mph.
Friday Night
Mostly clear, with a low around 31. North wind 5 to 10 mph becoming light in the evening.
Saturday
Sunny, with a high near 57.
Saturday Night
Clear, with a low around 37.
Sunday
Sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 45.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Janesville WI
 42.67°N 89.01°W (Elev. 797 ft)
9:01 am CDT Oct 13, 2026
10am CDT Oct 13, 2026-6pm CDT Oct 19, 2026
 
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Additional Resources

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Hourly Weather Forecast

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