National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Wed, Jun-24-2026 10:33am CDT
Cottage Grove
 
Today

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

Thursday: Mostly Sunny
Mostly Sunny
Friday

Friday: Slight Chance Rain Showers
Slight Chance Rain Showers
Saturday

Saturday: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Chance Rain Showers then Partly Sunny
Chance Rain Showers then Partly Sunny
Monday

Monday: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Hi 75 °F Hi 76 °F Hi 77 °F Hi 80 °F Hi 86 °F Hi 91 °F Hi 90 °F  
 
Tonight

Tonight: Showers And Thunderstorms Likely then Partly Cloudy
Showers And T-Storms Likely then Partly Cloudy
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy
Friday
Night
Friday Night: Partly Cloudy
Partly Cloudy
Saturday
Night
Saturday Night: Partly Cloudy then Chance Rain Showers
Partly Cloudy then Chance Rain Showers
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
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
 
Lo 57 °F Lo 54 °F Lo 54 °F Lo 62 °F Lo 72 °F Lo 73 °F Lo 72 °F  

 

Today
 
A chance of showers and thunderstorms before 1pm, then showers and thunderstorms likely between 1pm and 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 75. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Tonight
 
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm. Partly cloudy, with a low around 57. West wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
 
Mostly sunny, with a high near 76. Northwest wind 5 to 10 mph.
Thursday Night
 
Partly cloudy, with a low around 54. Northeast wind 0 to 5 mph.
Friday
 
A slight chance of rain showers between 7am and 1pm. Mostly sunny, with a high near 77. East wind 0 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Friday Night
 
Partly cloudy, with a low around 54. East wind 0 to 5 mph.
Saturday
 
Mostly sunny, with a high near 80. East wind 0 to 10 mph.
Saturday Night
 
A chance of rain showers after 1am. Partly cloudy, with a low around 62. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Sunday
 
A chance of rain showers before 7am. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Sunday Night
 
Partly cloudy, with a low around 72.
Monday
 
Mostly sunny, with a high near 91.
Monday Night
 
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Tuesday
 
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Tuesday Night
 
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 50%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.