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Cottage Grove, Wisconsin Weather Forecast
Cottage Grove, Wisconsin Weather
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Weather Forecast for Cottage Grove, Wisconsin : Dane County
Issued: 3:07 am CST Dec 7, 2025 Latitude: 43.0761082 Longitude: -89.1995593 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
100% chance of snow on Overnight 20% chance of snow on Sunday Mostly Cloudy on Monday 30% chance of rain & snow on Tuesday 30% chance of snow on Wednesday 30% chance of snow on Thursday Partly Sunny on Friday Partly Sunny on Saturday
Low: 15°F High: 11 °F High: 23°F High: 35°F High: 33°F High: 22°F High: 14°F High: 10°F
Low: 0 °F Low: 16°F Low: 28°F Low: 10°F Low: 3°F Low: -4°F  
Snow Snow Mostly Cloudy Rain & Snow Snow Snow Partly Sunny Partly Sunny
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Current Conditions at
MADISON - (KMSN)
21°
Cloudy
Light Snow Mist
as of 3:06 AM CST
Rel. Humidity: 92%
Dew Point: 19°F
Visibility: 1 1/2 Miles
Pressure: 30.03 in.
Flight Rule: IFR
Wind Data
3 MPH
350° North
Cloud Level(s): Solid Overcast at 3400ft
Current Conditions at
WATERTOWN - (KRYV)
23°
Cloudy
Light Snow
as of 2:55 AM CST
Rel. Humidity: 92%
Dew Point: 21°F
Visibility: 2 1/2 Miles
Pressure: 30.03 in.
Flight Rule: IFR
Wind Data
5 MPH
350° North
Cloud Level(s): Solid Overcast at 1600ft
Current Conditions at
JANESVILLE - (KJVL)
25°
Cloudy
Snow
as of 2:55 AM CST
Rel. Humidity: 92%
Dew Point: 23°F
Visibility: 1/2 Miles
Pressure: 30.02 in.
Flight Rule: IFR
Wind Data
5 MPH
020° North
Current Conditions at
JUNEAU - (KUNU)
19°
Cloudy
Light Snow
as of 3:17 AM CST
Rel. Humidity: 92%
Dew Point: 18°F
Visibility: 1 3/4 Miles
Pressure: 30.04 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 1800ft
100% chance of snow Overnight Overnight... Snow, mainly before 5am. Low around 15. North wind around 5 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.
20% chance of snow Sunday Sunday... A 20 percent chance of snow before 7am. Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 11 by 5pm. North wind 5 to 10 mph.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 0. Wind chill values between -5 and zero. North wind around 5 mph becoming calm in the evening.
Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 23. Light southeast wind becoming south 5 to 10 mph in the morning.
50% chance of snow Monday Night Monday Night... A 50 percent chance of snow. Cloudy, with a low around 16. South wind 10 to 15 mph, with gusts as high as 25 mph.
30% chance of rain & snow Tuesday Tuesday... A chance of rain and snow after noon. Mostly cloudy, with a high near 35. Southwest wind 10 to 15 mph. Chance of precipitation is 30%.
90% chance of rain & snow Tuesday Night Tuesday Night... Rain, possibly mixed with snow. Low around 28. South wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
30% chance of snow Wednesday Wednesday... A 30 percent chance of snow before noon. Mostly cloudy, with a high near 33. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
20% chance of snow Wednesday Night Wednesday Night... A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 10.
30% chance of snow Thursday Thursday... A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 22.
30% chance of snow Thursday Night Thursday Night... A 30 percent chance of snow. Mostly cloudy, with a low around 3.
Partly Sunny on Friday Friday... Partly sunny, with a high near 14.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around -4.
Partly Sunny on Saturday Saturday... Partly sunny and cold, with a high near 10.
Current Radar Image


Sun Almanac for Cottage Grove, Wisconsin
Sunrise: 07:15 AM
Sunset: 4:22 PM
Civil Sunrise:06:43 AM
Civil Sunset: 4:54 PM
Nautical Sunrise: 06:07 AM
Nautical Sunset: 5:30 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:04 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.