National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fog/Mist

41°F

5°C

Humidity 100%
Wind Speed S 5 mph
Barometer 30.16 in
Dewpoint 41°F (5°C)
Visibility 1.50 mi
Wind Chill38°F (3°C)
Last update 19 Nov 10:15 pm CST
Extended Forecast for

5 Miles SSW Janesville WI

  • Tonight

    Tonight: A slight chance of drizzle before 4am. Patchy fog. Otherwise, cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Slight Chance
    Drizzle and
    Patchy Fog

  • Thursday

    Thursday: Mostly cloudy, with a high near 52. South wind 5 to 10 mph.

    High: 52 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 34. Southwest wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 50. North wind 5 to 10 mph.

    High: 50 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25. North wind around 5 mph becoming calm in the evening.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 49. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32. Southwest wind around 5 mph.

    Low: 32 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 54. West wind 5 to 10 mph.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of drizzle before 4am. Patchy fog. Otherwise, cloudy, with a low around 38. Calm wind.
Thursday
Mostly cloudy, with a high near 52. South wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 34. Southwest wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 50. North wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 25. North wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 49. Light and variable wind becoming south 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 32. Southwest wind around 5 mph.
Sunday
Sunny, with a high near 54. West wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 31.
Monday
Mostly sunny, with a high near 53.
Monday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 35.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 50.
Tuesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 28.
Wednesday
Mostly sunny, with a high near 39.
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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:
8:41 pm CST Nov 19, 2025
Forecast Valid:
10pm CST Nov 19, 2025-6pm CST Nov 26, 2025
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation