National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Thu, Jun-04-2026 5:27am CDT
Cottage Grove
 
Today

Today: Mostly Sunny
Mostly Sunny
Friday

Friday: Showers And Thunderstorms
Showers And T-Storms
Saturday

Saturday: Rain Showers Likely
Rain Showers Likely
Sunday

Sunday: Mostly Sunny
Mostly Sunny
Monday

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

Tuesday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Wednesday

Wednesday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Hi 86 °F Hi 81 °F Hi 85 °F Hi 85 °F Hi 86 °F Hi 88 °F Hi 91 °F  
 
Tonight

Tonight: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Friday
Night
Friday Night: Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Chance Showers And T-Storms then Showers And T-Storms Likely
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Partly Cloudy then Slight Chance Showers And Thunderstorms
Partly Cloudy then Slight Chance Showers And T-Storms
Monday
Night
Monday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Tuesday
Night
Tuesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Lo 64 °F Lo 62 °F Lo 61 °F Lo 61 °F Lo 65 °F Lo 67 °F Lo 69 °F  

 

Today
 
Mostly sunny, with a high near 86. Southwest wind 5 to 15 mph.
Tonight
 
A chance of rain showers between 11pm and 4am, then showers and thunderstorms likely. Mostly cloudy, with a low around 64. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Friday
 
Showers and thunderstorms before 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Southwest wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Friday Night
 
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 62. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
 
Rain showers likely before 1pm. Mostly sunny, with a high near 85. West wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday Night
 
Partly cloudy, with a low around 61. East wind 0 to 5 mph.
Sunday
 
Mostly sunny, with a high near 85. East wind 5 to 10 mph.
Sunday Night
 
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61. East wind 5 to 10 mph. Chance of precipitation is 20%.
Monday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Monday Night
 
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Tuesday
 
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Tuesday Night
 
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Wednesday
 
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 91. Chance of precipitation is 30%.
Wednesday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.