National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Fri, Sep-25-2026 2:36pm CDT
Cottage Grove
 
This
Afternoon
This Afternoon: Mostly Cloudy
Mostly Cloudy
Saturday

Saturday: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Partly Sunny
Partly Sunny
Monday

Monday: Sunny
Sunny
Tuesday

Tuesday: Mostly Sunny then Chance Rain Showers
Mostly Sunny then Chance Rain Showers
Wednesday

Wednesday: Rain Showers Likely
Rain Showers Likely
Thursday

Thursday: Chance Rain Showers
Chance Rain Showers
 
Hi 68 °F Hi 69 °F Hi 68 °F Hi 70 °F Hi 70 °F Hi 68 °F Hi 68 °F  
 
Tonight

Tonight: Mostly Clear
Mostly Clear
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Rain Showers Likely
Rain Showers Likely
Wednesday
Night
Wednesday Night: Rain Showers Likely
Rain Showers Likely
Thursday
Night
Thursday Night: Chance Rain Showers
Chance Rain Showers
 
Lo 47 °F Lo 47 °F Lo 50 °F Lo 50 °F Lo 57 °F Lo 57 °F Lo 51 °F  

 

This Afternoon
 
Mostly cloudy, with a high near 68. East wind around 5 mph.
Tonight
 
Mostly clear, with a low around 47. East wind 0 to 5 mph.
Saturday
 
Mostly sunny, with a high near 69. East wind 0 to 10 mph.
Saturday Night
 
Partly cloudy, with a low around 47. East wind 0 to 5 mph.
Sunday
 
Partly sunny, with a high near 68. Northeast wind around 0 mph.
Sunday Night
 
Partly cloudy, with a low around 50. North wind around 0 mph.
Monday
 
Sunny, with a high near 70. East wind around 0 mph.
Monday Night
 
Mostly clear, with a low around 50. Southeast wind around 0 mph.
Tuesday
 
A chance of rain showers after 1pm. Mostly sunny, with a high near 70. Chance of precipitation is 30%.
Tuesday Night
 
Rain showers likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Wednesday
 
Rain showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Wednesday Night
 
Rain showers likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Thursday
 
A chance of rain showers. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.
Thursday Night
 
A chance of rain showers. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.