National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Fri, Jul-10-2026 8:36pm CDT
Cottage Grove
 
  Saturday

Saturday: Sunny
Sunny
Sunday

Sunday: Sunny
Sunny
Monday

Monday: Sunny
Sunny
Tuesday

Tuesday: Sunny
Sunny
Wednesday

Wednesday: Sunny
Sunny
Thursday

Thursday: Mostly Sunny
Mostly Sunny
Friday

Friday: Chance Rain Showers
Chance Rain Showers
  Hi 85 °F Hi 86 °F Hi 89 °F Hi 90 °F Hi 89 °F Hi 87 °F Hi 85 °F
 
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy
Saturday
Night
Saturday Night: Clear
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: Mostly Clear
Mostly Clear
Thursday
Night
Thursday Night: Partly Cloudy then Chance Rain Showers
Partly Cloudy then Chance Rain Showers
 
Lo 62 °F Lo 62 °F Lo 64 °F Lo 66 °F Lo 69 °F Lo 67 °F Lo 65 °F  

 

Tonight
 
Mostly cloudy, with a low around 62. Northeast wind 0 to 5 mph.
Saturday
 
Sunny, with a high near 85. Northeast wind 0 to 10 mph.
Saturday Night
 
Clear, with a low around 62. East wind 0 to 5 mph.
Sunday
 
Sunny, with a high near 86. East wind 0 to 5 mph.
Sunday Night
 
Clear, with a low around 64. South wind around 0 mph.
Monday
 
Sunny, with a high near 89. West wind 0 to 5 mph.
Monday Night
 
Clear, with a low around 66. West wind around 0 mph.
Tuesday
 
Sunny, with a high near 90. West wind 0 to 5 mph.
Tuesday Night
 
Mostly clear, with a low around 69.
Wednesday
 
Sunny, with a high near 89.
Wednesday Night
 
Mostly clear, with a low around 67.
Thursday
 
Mostly sunny, with a high near 87.
Thursday Night
 
A chance of rain showers after 1am. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Friday
 
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.