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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Partly Cloudy

30°F

-1°C

Humidity 80%
Wind Speed W 9 mph
Barometer 30.14 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 12 Mar 5:45 am CDT
Extended Forecast for

Janesville WI

Wind Advisory March 13, 12:00am until March 13, 06:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: Increasing clouds, with a high near 46. West wind 5 to 15 mph becoming south in the afternoon.

    High: 46 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Rain, mainly before 4am. Low around 33. Windy, with a south wind 15 to 25 mph becoming west after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Windy. Chance
    Rain then
    Rain

  • Friday

    Friday: Mostly cloudy, with a high near 43. Windy, with a west wind 25 to 30 mph, with gusts as high as 50 mph.

    High: 43 °F

    Mostly Cloudy
    and Windy

  • Friday Night

    Friday Night: Increasing clouds, with a low around 27. Northwest wind 10 to 15 mph becoming light after midnight.

    Low: 27 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 20 percent chance of snow after 1pm. Cloudy, with a high near 40. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 40 °F

    Cloudy then
    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: A chance of snow before 1am, then rain and snow. Low around 31. East wind 5 to 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 31 °F

    Chance Snow
    then
    Rain/Snow

  • Sunday

    Sunday: Rain and snow. High near 42. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 42 °F

    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Low around 15. Windy, with a north wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 80%.

    Low: 15 °F

    Heavy Snow
    and Windy

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 22. Windy.

    High: 22 °F

    Chance Snow
    and Windy

Detailed Forecast

Today
Increasing clouds, with a high near 46. West wind 5 to 15 mph becoming south in the afternoon.
Tonight
Rain, mainly before 4am. Low around 33. Windy, with a south wind 15 to 25 mph becoming west after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly cloudy, with a high near 43. Windy, with a west wind 25 to 30 mph, with gusts as high as 50 mph.
Friday Night
Increasing clouds, with a low around 27. Northwest wind 10 to 15 mph becoming light after midnight.
Saturday
A 20 percent chance of snow after 1pm. Cloudy, with a high near 40. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
A chance of snow before 1am, then rain and snow. Low around 31. East wind 5 to 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Sunday
Rain and snow. High near 42. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Sunday Night
Snow. The snow could be heavy at times. Low around 15. Windy, with a north wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 80%.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 22. Windy.
Monday Night
Partly cloudy, with a low around 1.
Tuesday
Sunny, with a high near 24.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 10.
Wednesday
A 20 percent chance of snow. Mostly cloudy, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Janesville WI
 42.67°N 89.01°W (Elev. 797 ft)
Last Update:
6:27 am CDT Mar 12, 2026
Forecast Valid:
6am CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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