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Janesville, Wisconsin Weather Forecast
Janesville, Wisconsin Weather
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Weather Forecast for Janesville, Wisconsin : Rock County
Issued: 7:37 am CST Nov 17, 2025 Latitude: 42.6827885 Longitude: -89.0187223 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Increasing Clouds on Today 90% chance of rain & snow on Tonight 90% chance of rain & snow on Tuesday Mostly Cloudy on Wednesday 50% chance of rain on Thursday 30% chance of rain on Friday 20% chance of rain on Saturday Mostly Sunny on Sunday
High: 46°F Low: 35°F High: 41°F High: 44°F High: 52°F High: 45°F High: 47°F High: 49°F
Low: 32°F Low: 34°F Low: 35°F Low: 30°F Low: 32°F  
Increasing Clouds Rain & Snow Rain & Snow Mostly Cloudy Rain Rain Rain Mostly Sunny
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Current Conditions at
JANESVILLE - (KJVL)
27°
Clear
as of 7:45 AM CST
Rel. Humidity: 190%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MONROE - (KEFT)
34°
Cloudy
as of 8:15 AM CST
Rel. Humidity: 59%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 6000ft
Current Conditions at
ROCKFORD - (KRFD)
27°
Mostly Cloudy
as of 7:54 AM CST
Rel. Humidity: 86%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 6000ft, Broken at 12000ft
Current Conditions at
MADISON - (KMSN)
28°
Mostly Clear
as of 7:53 AM CST
Rel. Humidity: 74%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 15000ft
Increasing Clouds on Today Today... Increasing clouds, with a high near 46. Calm wind becoming southeast around 5 mph.

90% chance of rain & snow Tonight Tonight... Rain before 3am, then rain, possibly mixed with snow between 3am and 4am, then rain after 4am. Low around 35. East wind 5 to 10 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

90% chance of rain & snow Tuesday Tuesday... Rain before 7am, then rain, possibly mixed with snow between 7am and 8am, then rain after 8am. High near 41. East wind around 10 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 32. Northeast wind around 5 mph becoming calm in the evening.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 44. Calm wind becoming southeast around 5 mph.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 34. Calm wind.

50% chance of rain Thursday Thursday... A 50 percent chance of rain. Mostly cloudy, with a high near 52. Calm wind becoming south around 5 mph in the morning.

40% chance of rain Thursday Night Thursday Night... A 40 percent chance of rain. Mostly cloudy, with a low around 35. Southwest wind around 5 mph becoming north after midnight.

30% chance of rain Friday Friday... A 30 percent chance of rain. Partly sunny, with a high near 45.

30% chance of rain Friday Night Friday Night... A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 30.

20% chance of rain Saturday Saturday... A 20 percent chance of rain. Mostly sunny, with a high near 47.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 32.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 49.

Current Radar Image


Sun Almanac for Janesville, Wisconsin
Sunrise: 06:51 AM
Sunset: 4:31 PM
Civil Sunrise:06:20 AM
Civil Sunset: 5:02 PM
Nautical Sunrise: 05:46 AM
Nautical Sunset: 5:36 PM
Astro Sunrise: 05:13 AM
Astro Sunset: 6:10 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.