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

30°F

-1°C

Humidity 93%
Wind Speed S 3 mph
Barometer 30.15 in
Dewpoint 28°F (-2°C)
Visibility 5.00 mi
Last update 13 Feb 8:45 am CST
Extended Forecast for

2 Miles N Janesville WI

  • Today

    Today: Sunny, with a high near 50. Southwest wind 5 to 10 mph.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 29. Southwest wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Clear then
    Patchy Fog

  • Saturday

    Saturday: Mostly sunny, with a high near 49. Calm wind becoming south around 5 mph.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Southeast wind around 5 mph becoming calm.

    Low: 31 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 52. Calm wind becoming west around 5 mph.

    High: 52 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34. Calm wind becoming southwest around 5 mph after midnight.

    Low: 34 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 57. Southwest wind 5 to 10 mph.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 38. Southwest wind around 5 mph becoming southeast after midnight.

    Low: 38 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 50. Southwest wind 5 to 10 mph.
Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 29. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 49. Calm wind becoming south around 5 mph.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Southeast wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 52. Calm wind becoming west around 5 mph.
Sunday Night
Partly cloudy, with a low around 34. Calm wind becoming southwest around 5 mph after midnight.
Washington's Birthday
Mostly sunny, with a high near 57. Southwest wind 5 to 10 mph.
Monday Night
Increasing clouds, with a low around 38. Southwest wind around 5 mph becoming southeast after midnight.
Tuesday
Partly sunny, with a high near 54.
Tuesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of rain. Partly sunny, with a high near 55.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 30.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Janesville WI
 42.71°N 89°W (Elev. 892 ft)
Last Update:
7:34 am CST Feb 13, 2026
Forecast Valid:
9am CST Feb 13, 2026-6pm CST Feb 19, 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