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

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Partly Cloudy and Breezy

43°F

6°C

Humidity 39%
Wind Speed NW 23 G 36 mph
Barometer 29.85 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 13 Mar 5:45 pm CDT
Extended Forecast for

5 Miles SSW Janesville WI

Winter Storm Watch March 15, 04:00pm until March 16, 07:00pm
Wind Advisory until March 13, 07:00pm
Click here for hazard details and duration
Winter Storm Watch
...
  •  
    Wind Advisory until March 13, 07:00pm

    NOW until 7:00pm Fri

    Wind Advisory

  • Tonight

    Low: 27 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Cloudy, with a high near 40. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 40 °F

    Cloudy then
    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: A chance of snow before 11pm, then a chance of rain and snow between 11pm and 1am, then a chance of rain after 1am. Cloudy, with a low around 32. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 32 °F

    Chance
    Rain/Snow

  • Sunday

    Sunday: Rain and possibly a thunderstorm. High near 56. Breezy, with a southeast wind 15 to 20 mph becoming south in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 56 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Snow, possibly mixed with rain, becoming all snow after 10pm. Patchy blowing snow after 10pm. Low around 18. Windy, with a north wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 18 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow likely, mainly before 1pm. Areas of blowing snow. Cloudy, with a high near 22. Windy, with a northwest wind around 25 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 22 °F

    Snow Likely
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 4. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 4 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 23. Northwest wind around 10 mph.

    High: 23 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. Blustery, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 35 mph.
Saturday
A 20 percent chance of snow after noon. Cloudy, with a high near 40. Light east wind becoming southeast 5 to 10 mph in the morning.
Saturday Night
A chance of snow before 11pm, then a chance of rain and snow between 11pm and 1am, then a chance of rain after 1am. Cloudy, with a low around 32. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Sunday
Rain and possibly a thunderstorm. High near 56. Breezy, with a southeast wind 15 to 20 mph becoming south in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Snow, possibly mixed with rain, becoming all snow after 10pm. Patchy blowing snow after 10pm. Low around 18. Windy, with a north wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Monday
Snow likely, mainly before 1pm. Areas of blowing snow. Cloudy, with a high near 22. Windy, with a northwest wind around 25 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 4. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 23. Northwest wind around 10 mph.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 15.
Wednesday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
Partly sunny, with a high near 49.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
Partly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
4:34 pm CDT Mar 13, 2026
Forecast Valid:
6pm CDT Mar 13, 2026-6pm CDT Mar 20, 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