National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Wed, Jul-01-2026 11:12am CDT
Cottage Grove
 
Today

Today: Sunny
Sunny
Thursday

Thursday: Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Chance Showers And T-Storms then Slight Chance Showers And T-Storms
Friday

Friday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Independence
Day
Independence Day: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Sunday

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

Monday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
 
Hi 92 °F Hi 89 °F Hi 89 °F Hi 84 °F Hi 85 °F Hi 86 °F Hi 87 °F  
 
Tonight

Tonight: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Chance Showers And T-Storms then Showers And T-Storms Likely
Friday
Night
Friday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Saturday
Night
Saturday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Sunday
Night
Sunday Night: Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Chance Showers And T-Storms then Slight Chance Showers And T-Storms
Monday
Night
Monday Night: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
Tuesday
Night
Tuesday Night: Partly Cloudy then Slight Chance Showers And Thunderstorms
Partly Cloudy then Slight Chance Showers And T-Storms
 
Lo 75 °F Lo 70 °F Lo 70 °F Lo 66 °F Lo 64 °F Lo 65 °F Lo 66 °F  

Extreme Heat Warning issued July 1 at 6:33AM CDT until July 1 at 7:00PM CDT
 

Today
 
Sunny, with a high near 92. Heat index values as high as 99. Southwest wind 10 to 15 mph.
Tonight
 
A chance of showers and thunderstorms between 11pm and 3am, then showers and thunderstorms likely. Partly cloudy, with a low around 75. Heat index values as high as 97. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Thursday
 
A chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms between 8am and 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 89. Heat index values as high as 97. Southwest wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Thursday Night
 
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 70. Heat index values as high as 96. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Friday
 
Showers and thunderstorms likely. Partly sunny, with a high near 89. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday Night
 
Showers and thunderstorms likely. Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Independence Day
 
Showers and thunderstorms likely. Partly sunny, with a high near 84. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
 
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. East wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
 
Showers and thunderstorms likely. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Sunday Night
 
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 64. Chance of precipitation is 40%.
Monday
 
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
Monday Night
 
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 65. Chance of precipitation is 20%.
Tuesday
 
Mostly sunny, with a high near 87.
Tuesday Night
 
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Chance of precipitation is 20%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.