National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Fri, Nov-13-2026 3:41pm CST
Cottage Grove
 
This
Afternoon
This Afternoon: Mostly Cloudy
Mostly Cloudy
Saturday

Saturday: Sunny
Sunny
Sunday

Sunday: Sunny
Sunny
Monday

Monday: Sunny
Sunny
Tuesday

Tuesday: Sunny
Sunny
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny
Thursday

Thursday: Slight Chance Light Rain
Slight Chance Light Rain
 
Hi 41 °F Hi 46 °F Hi 49 °F Hi 51 °F Hi 55 °F Hi 56 °F Hi 59 °F  
 
Tonight

Tonight: Mostly Clear
Mostly Clear
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday
Night
Sunday Night: Clear
Clear
Monday
Night
Monday Night: Clear
Clear
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
Thursday
Night
Thursday Night: Slight Chance Light Rain
Slight Chance Light Rain
 
Lo 26 °F Lo 25 °F Lo 26 °F Lo 29 °F Lo 32 °F Lo 42 °F Lo 44 °F  

 

This Afternoon
 
Mostly cloudy, with a high near 41. North wind 0 to 5 mph.
Tonight
 
Mostly clear, with a low around 26. North wind around 5 mph.
Saturday
 
Sunny. High near 46, with temperatures falling to around 40 in the afternoon. Northwest wind 5 to 10 mph.
Saturday Night
 
Mostly clear, with a low around 25. Northwest wind 0 to 5 mph.
Sunday
 
Sunny. High near 49, with temperatures falling to around 44 in the afternoon. Northwest wind around 0 mph.
Sunday Night
 
Clear, with a low around 26. West wind around 0 mph.
Monday
 
Sunny. High near 51, with temperatures falling to around 45 in the afternoon. Southwest wind 0 to 10 mph.
Monday Night
 
Clear, with a low around 29. Southwest wind around 5 mph.
Tuesday
 
Sunny. High near 55, with temperatures falling to around 49 in the afternoon.
Tuesday Night
 
Mostly clear, with a low around 32.
Wednesday
 
Mostly sunny, with a high near 56.
Wednesday Night
 
Partly cloudy, with a low around 42.
Thursday
 
A slight chance of rain. Partly sunny, with a high near 59. Chance of precipitation is 20%.
Thursday Night
 
A slight chance of rain. Partly cloudy, with a low around 44. Chance of precipitation is 20%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.