National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Tue, Sep-08-2026 6:11pm CDT
Cottage Grove
 
  Wednesday

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

Thursday: Sunny
Sunny
Friday

Friday: Sunny
Sunny
Saturday

Saturday: Chance Rain Showers then Chance Showers And Thunderstorms
Chance Rain Showers then Chance Showers And T-Storms
Sunday

Sunday: Chance Rain Showers
Chance Rain Showers
Monday

Monday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Tuesday

Tuesday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
  Hi 81 °F Hi 76 °F Hi 79 °F Hi 80 °F Hi 74 °F Hi 76 °F Hi 72 °F
 
Tonight

Tonight: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday
Night
Thursday Night: Clear
Clear
Friday
Night
Friday Night: Mostly Clear then Chance Rain Showers
Mostly Clear then Chance Rain Showers
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Sunday
Night
Sunday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Monday
Night
Monday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
 
Lo 69 °F Lo 58 °F Lo 53 °F Lo 61 °F Lo 57 °F Lo 55 °F Lo 59 °F  

 

Tonight
 
A slight chance of rain showers before 9pm, then showers and thunderstorms likely. Cloudy, with a low around 69. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
 
Showers and thunderstorms likely before 10am. Partly sunny, with a high near 81. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
 
Mostly clear, with a low around 58. West wind around 5 mph.
Thursday
 
Sunny, with a high near 76. Northwest wind around 5 mph.
Thursday Night
 
Clear, with a low around 53. North wind around 0 mph.
Friday
 
Sunny, with a high near 79. South wind 0 to 10 mph.
Friday Night
 
A chance of rain showers after 1am. Mostly clear, with a low around 61. South wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Saturday
 
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 80. Southwest wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Saturday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Sunday
 
A chance of rain showers. Mostly sunny, with a high near 74. Chance of precipitation is 30%.
Sunday Night
 
A chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Monday
 
Showers and thunderstorms likely. Partly sunny, with a high near 76. Chance of precipitation is 60%.
Monday Night
 
Showers and thunderstorms likely. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.
Tuesday
 
Showers and thunderstorms likely before 1pm. Partly sunny, with a high near 72. Chance of precipitation is 60%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.