National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Mon, Dec-15-2025 12:21am CST
Cottage Grove
 
  Monday

Monday: Partly Sunny
Partly Sunny
Tuesday

Tuesday: Mostly Cloudy
Mostly Cloudy
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny
Thursday

Thursday: Rain And Snow Likely then Chance Rain And Snow
Rain And Snow Likely then Chance Rain And Snow
Friday

Friday: Partly Sunny
Partly Sunny
Saturday

Saturday: Mostly Cloudy
Mostly Cloudy
Sunday

Sunday: Mostly Sunny
Mostly Sunny
  Hi 24 °F Hi 36 °F Hi 36 °F Hi 40 °F Hi 23 °F Hi 37 °F Hi 25 °F
 
Overnight

Overnight: Cloudy
Cloudy
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Tuesday
Night
Tuesday Night: Mostly Cloudy
Mostly Cloudy
Wednesday
Night
Wednesday Night: Mostly Cloudy then Chance Light Rain
Mostly Cloudy then Chance Light Rain
Thursday
Night
Thursday Night: Mostly Cloudy
Mostly Cloudy
Friday
Night
Friday Night: Slight Chance Light Snow then Mostly Cloudy
Slight Chance Light Snow then Mostly Cloudy
Saturday
Night
Saturday Night: Mostly Cloudy
Mostly Cloudy
 
Lo 0 °F Lo 10 °F Lo 25 °F Lo 28 °F Lo 0 °F Lo 16 °F Lo 13 °F  

 

Overnight
 
Cloudy. Low around 0, with temperatures rising to around 7 overnight. Wind chill values as low as -15. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
 
Partly sunny, with a high near 24. Wind chill values as low as -7. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Monday Night
 
Partly cloudy, with a low around 10. Southwest wind 0 to 5 mph.
Tuesday
 
Mostly cloudy, with a high near 36. Southwest wind 5 to 15 mph.
Tuesday Night
 
Mostly cloudy, with a low around 25. West wind 10 to 15 mph.
Wednesday
 
Mostly sunny, with a high near 36. Southwest wind 5 to 10 mph.
Wednesday Night
 
A chance of rain after midnight. Mostly cloudy. Low around 28, with temperatures rising to around 37 overnight. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Thursday
 
Rain and snow likely before noon, then a chance of rain and snow. Mostly cloudy. High near 40, with temperatures falling to around 23 in the afternoon. West wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Thursday Night
 
Mostly cloudy, with a low around 0.
Friday
 
Partly sunny, with a high near 23.
Friday Night
 
A slight chance of snow before midnight. Mostly cloudy. Low around 16, with temperatures rising to around 26 overnight. Chance of precipitation is 20%.
Saturday
 
Mostly cloudy, with a high near 37.
Saturday Night
 
Mostly cloudy, with a low around 13.
Sunday
 
Mostly sunny, with a high near 25.

 

Forecast from NOAA-NWS for Cottage Grove, WI.