National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Sun, Sep-06-2026 10:56am CDT
Cottage Grove
 
Today

Today: Partly Sunny
Partly Sunny
Labor
Day
Labor Day: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Partly Sunny then Slight Chance Showers And Thunderstorms
Partly Sunny then Slight Chance Showers And T-Storms
Wednesday

Wednesday: Showers And Thunderstorms then Partly Sunny
Showers And T-Storms then Partly Sunny
Thursday

Thursday: Sunny
Sunny
Friday

Friday: Sunny
Sunny
Saturday

Saturday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
 
Hi 80 °F Hi 78 °F Hi 84 °F Hi 82 °F Hi 77 °F Hi 79 °F Hi 80 °F  
 
Tonight

Tonight: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Tuesday
Night
Tuesday Night: Chance Showers And Thunderstorms then Showers And Thunderstorms
Chance Showers And T-Storms then Showers And T-Storms
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Lo 57 °F Lo 60 °F Lo 70 °F Lo 58 °F Lo 55 °F Lo 59 °F Lo 59 °F  

 

Today
 
Partly sunny, with a high near 80. East wind around 5 mph.
Tonight
 
Mostly clear, with a low around 57. East wind 0 to 5 mph.
Labor Day
 
Mostly sunny, with a high near 78. Southeast wind 5 to 10 mph.
Monday Night
 
Partly cloudy, with a low around 60. Southeast wind 5 to 10 mph.
Tuesday
 
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. South wind around 10 mph. Chance of precipitation is 20%.
Tuesday Night
 
A chance of showers and thunderstorms before 10pm, then showers and thunderstorms. Mostly cloudy, with a low around 70. Southwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
 
Showers and thunderstorms before 7am. Partly sunny, with a high near 82. West wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
 
Partly cloudy, with a low around 58. West wind 5 to 10 mph.
Thursday
 
Sunny, with a high near 77.
Thursday Night
 
Mostly clear, with a low around 55.
Friday
 
Sunny, with a high near 79.
Friday Night
 
Mostly clear, with a low around 59.
Saturday
 
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Chance of precipitation is 20%.
Saturday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.