National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Thu, Jun-04-2026 6:37pm CDT
Cottage Grove
 
  Friday

Friday: Showers And Thunderstorms
Showers And T-Storms
Saturday

Saturday: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Sunday

Sunday: Mostly Sunny
Mostly Sunny
Monday

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

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

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

Thursday: Mostly Sunny
Mostly Sunny
  Hi 81 °F Hi 85 °F Hi 84 °F Hi 86 °F Hi 88 °F Hi 92 °F Hi 94 °F
 
Tonight

Tonight: Mostly Cloudy then Chance Showers And Thunderstorms
Mostly Cloudy then Chance Showers And T-Storms
Friday
Night
Friday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Saturday
Night
Saturday Night: Slight Chance Rain Showers then Partly Cloudy
Slight Chance Rain Showers then Partly Cloudy
Sunday
Night
Sunday Night: Mostly Cloudy
Mostly Cloudy
Monday
Night
Monday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Tuesday
Night
Tuesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
 
Lo 64 °F Lo 62 °F Lo 60 °F Lo 62 °F Lo 66 °F Lo 67 °F Lo 69 °F  

 

Tonight
 
A chance of showers and thunderstorms between midnight 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 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Southwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday
 
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Northwest wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Saturday Night
 
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 60. East wind 0 to 5 mph. Chance of precipitation is 20%.
Sunday
 
Mostly sunny, with a high near 84. East wind 5 to 10 mph.
Sunday Night
 
Mostly cloudy, with a low around 62. Southeast wind 5 to 10 mph.
Monday
 
Showers and thunderstorms likely after 7am. Mostly cloudy, with a high near 86. Southeast wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Monday Night
 
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Tuesday
 
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 88. Chance of precipitation is 50%.
Tuesday Night
 
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 1pm. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
Wednesday Night
 
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
Thursday
 
Mostly sunny, with a high near 94.

 

Forecast from NOAA-NWS for Cottage Grove, WI.