url:
Janesville, Wisconsin Weather Forecast
Janesville, Wisconsin Weather
your sport, your way
Air Sports Net on FacebookAir Sports Net on Google +Air Sports Net on TwitterReceive RSS UpdatesReceive Email Updates

Click for Hazardous Weather Outlook for Janesville, Wisconsin
Change location by the zip code or city,state: or search for other weather forecast locations in Wisconsin by name.
Weather Forecast for Janesville, Wisconsin : Rock County
Issued: 2:12 am CST Jan 9, 2026 Latitude: 42.6827885 Longitude: -89.0187223 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
40% chance of rain on Overnight 40% chance of rain on Friday 60% chance of snow on Saturday Mostly Cloudy on Sunday Mostly Sunny on Monday 40% chance of rain on Tuesday 30% chance of snow on Wednesday Mostly Sunny on Thursday
Low: 39°F High: 41°F High: 33°F High: 31°F High: 40°F High: 43°F High: 32°F High: 30°F
Low: 28°F Low: 20°F Low: 23°F Low: 31°F Low: 28°F Low: 16°F  
Rain Rain Snow Mostly Cloudy Mostly Sunny Rain Snow Mostly Sunny
-
Current Conditions at
JANESVILLE - (KJVL)
-20°
Feels like -50°F
Cloudy
as of 1:50 AM CST
Rel. Humidity: 82%
Dew Point: -24°F
Visibility: 10 Miles
Pressure: 29.34 in.
Flight Rule: MVFR
Wind Data
23 MPH
Gust: 31 MPH
230° Southwest
Cloud Level(s): Scattered at 2000ft, Broken at 2600ft, Solid Overcast at 3200ft
Current Conditions at
MONROE - (KEFT)
46°
Feels like 36°F
Cloudy
as of 1:55 AM CST
Rel. Humidity: 87%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.31 in.
Flight Rule: MVFR
Wind Data
32 MPH
Gust: 39 MPH
230° Southwest
Cloud Level(s): Solid Overcast at 1100ft
Current Conditions at
ROCKFORD - (KRFD)
52°
Cloudy
as of 1:54 AM CST
Rel. Humidity: 81%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 29.37 in.
Flight Rule: MVFR
Wind Data
16 MPH
Gust: 40 MPH
230° Southwest
Cloud Level(s): Scattered at 1800ft, Broken at 2500ft, Solid Overcast at 3400ft
Current Conditions at
MADISON - (KMSN)
45°
Feels like 38°F
Cloudy
Light Rain
as of 2:05 AM CST
Rel. Humidity: 93%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.31 in.
Flight Rule: MVFR
Wind Data
12 MPH
330° Northwest
Cloud Level(s): Few at 600ft, Broken at 1100ft, Solid Overcast at 1800ft
40% chance of rain Overnight Overnight... A 40 percent chance of rain, mainly after 4am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 39. Breezy, with a southwest wind around 20 mph, with gusts as high as 35 mph.
40% chance of rain Friday Friday... A 40 percent chance of rain, mainly before 7am. Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 41. Breezy, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 35 mph.
40% chance of rain & snow Friday Night Friday Night... A slight chance of rain between 3am and 4am, then a chance of snow. Patchy fog after 4am. Otherwise, increasing clouds, with a low around 28. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
60% chance of snow Saturday Saturday... Snow likely, mainly before noon. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 33. Light west wind increasing to 10 to 15 mph in the morning. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
30% chance of snow Saturday Night Saturday Night... A 30 percent chance of snow. Mostly cloudy, with a low around 20. Northwest wind around 15 mph, with gusts as high as 30 mph.
Mostly Cloudy on Sunday Sunday... Mostly cloudy, then gradually becoming sunny, with a high near 31. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 23. Southwest wind 5 to 10 mph.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 40. Southwest wind around 10 mph.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 31.
40% chance of rain Tuesday Tuesday... A 40 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 43.
40% chance of rain & snow Tuesday Night Tuesday Night... A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
30% chance of snow Wednesday Wednesday... A 30 percent chance of snow. Partly sunny, with a high near 32.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 16.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 30.
Current Radar Image


Sun Almanac for Janesville, Wisconsin
Sunrise: 07:26 AM
Sunset: 4:41 PM
Civil Sunrise:06:54 AM
Civil Sunset: 5:13 PM
Nautical Sunrise: 06:19 AM
Nautical Sunset: 5:48 PM
Astro Sunrise: 05:45 AM
Astro Sunset: 6:22 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.