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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

37°F

3°C

Humidity 93%
Wind Speed E 16 G 21 mph
Barometer 30.06 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 3 Apr 9:10 pm CDT
Extended Forecast for

Janesville WI

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a chance of showers between 4am and 5am. Low around 39. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Showers and
    Breezy

  • Saturday

    Saturday: A slight chance of showers between 7am and 8am. Cloudy, with a high near 52. Breezy, with a south wind 10 to 15 mph becoming west 15 to 20 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 20%.

    High: 52 °F

    Slight Chance
    Showers then
    Cloudy and
    Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 33. West wind around 15 mph, with gusts as high as 30 mph.

    Low: 33 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 52. West wind around 15 mph.

    High: 52 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35. West wind 5 to 10 mph.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 48. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 22. North wind 5 to 15 mph.

    Low: 22 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 45. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers before 4am, then a chance of rain and snow showers. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Slight Chance
    Snow Showers
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Showers and thunderstorms before 4am, then a chance of showers between 4am and 5am. Low around 39. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A slight chance of showers between 7am and 8am. Cloudy, with a high near 52. Breezy, with a south wind 10 to 15 mph becoming west 15 to 20 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 20%.
Saturday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 33. West wind around 15 mph, with gusts as high as 30 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 52. West wind around 15 mph.
Sunday Night
Partly cloudy, with a low around 35. West wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 48. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 22. North wind 5 to 15 mph.
Tuesday
Sunny, with a high near 45. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Tuesday Night
A chance of snow showers before 4am, then a chance of rain and snow showers. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 64. Breezy.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 46. Breezy.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 62.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 43.
Friday
Showers likely. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Janesville WI
 42.67°N 89.04°W (Elev. 774 ft)
Last Update:
8:37 pm CDT Apr 3, 2026
Forecast Valid:
9pm CDT Apr 3, 2026-6pm CDT Apr 10, 2026
 
Forecast Discussion
 
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Additional Resources

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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