National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Thu, Jul-02-2026 2:37pm CDT
Cottage Grove
 
This
Afternoon
This Afternoon: Scattered Showers And Thunderstorms
Scattered Showers And T-Storms
Friday

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

Sunday: Chance Rain Showers
Chance Rain Showers
Monday

Monday: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny
 
Hi 88 °F Hi 85 °F Hi 81 °F Hi 81 °F Hi 82 °F Hi 85 °F Hi 86 °F  
 
Tonight

Tonight: Scattered Showers And Thunderstorms then Chance Showers And Thunderstorms
Scattered Showers And T-Storms then Chance Showers And T-Storms
Friday
Night
Friday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Saturday
Night
Saturday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Sunday
Night
Sunday Night: Chance Showers And Thunderstorms then Partly Cloudy
Chance Showers And T-Storms then Partly Cloudy
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Tuesday
Night
Tuesday Night: Slight Chance Rain Showers
Slight Chance Rain Showers
Wednesday
Night
Wednesday Night: Partly Cloudy then Chance Rain Showers
Partly Cloudy then Chance Rain Showers
 
Lo 70 °F Lo 67 °F Lo 63 °F Lo 61 °F Lo 61 °F Lo 63 °F Lo 63 °F  

Severe Thunderstorm Watch issued July 2 at 3:19PM CDT until July 2 at 10:00PM CDT
Extreme Heat Warning issued July 2 at 11:29AM CDT until July 2 at 10:00PM CDT
 

This Afternoon
 
Scattered showers and thunderstorms after 4pm. Mostly sunny, with a high near 88. Heat index values as high as 95. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Tonight
 
Scattered showers and thunderstorms before 7pm, then showers and thunderstorms between 7pm and 8pm, then a chance of showers and thunderstorms between 8pm and midnight, then a chance of showers and thunderstorms between midnight and 3am, then scattered showers and thunderstorms. Mostly cloudy, with a low around 70. West wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
 
Isolated showers and thunderstorms before 7am, then showers and thunderstorms likely between 7am and 4pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
 
A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms between 10pm and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. North wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Independence Day
 
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Mostly cloudy, with a high near 81. Southeast 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 63. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
 
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Northwest wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunday Night
 
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 61. North wind 0 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Monday
 
Mostly sunny, with a high near 82.
Monday Night
 
Partly cloudy, with a low around 61.
Tuesday
 
Mostly sunny, with a high near 85.
Tuesday Night
 
A slight chance of rain showers between 7pm and 1am. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Wednesday
 
Mostly sunny, with a high near 86.
Wednesday Night
 
A chance of rain showers after 1am. Partly cloudy, with a low around 63. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.