National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Thu, Jul-02-2026 2:31am CDT
Cottage Grove
 
  Thursday

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

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

Sunday: Slight Chance Showers And Thunderstorms then Partly Sunny
Slight Chance Showers And T-Storms then Partly Sunny
Monday

Monday: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Wednesday

Wednesday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
  Hi 89 °F Hi 86 °F Hi 82 °F Hi 82 °F Hi 83 °F Hi 86 °F Hi 85 °F
 
Overnight

Overnight: Showers And Thunderstorms
Showers And T-Storms
Thursday
Night
Thursday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Friday
Night
Friday Night: Chance Showers And Thunderstorms then Showers And Thunderstorms
Chance Showers And T-Storms then Showers And T-Storms
Saturday
Night
Saturday Night: Showers And Thunderstorms
Showers And T-Storms
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
 
Lo 74 °F Lo 70 °F Lo 68 °F Lo 64 °F Lo 62 °F Lo 63 °F Lo 65 °F  

Extreme Heat Warning issued July 2 at 12:45AM CDT until July 2 at 10:00PM CDT
 

Overnight
 
Showers and thunderstorms. Mostly cloudy, with a low around 74. Southwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
 
A chance of showers and thunderstorms before 9am, 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 quarter and half of an inch possible.
Thursday Night
 
Showers and thunderstorms likely before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
 
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms between 9am and 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and thunderstorms likely between 1pm and 2pm, then a slight chance of showers and thunderstorms between 2pm and 4pm, then showers and thunderstorms. Partly sunny, with a high near 86. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
 
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 68. East wind 0 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Independence Day
 
Showers and thunderstorms. Partly sunny, with a high near 82. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
 
Showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. North wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
 
A slight chance of showers and thunderstorms before 7am. Partly sunny, with a high near 82. North wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Sunday Night
 
Partly cloudy, with a low around 62.
Monday
 
Mostly sunny, with a high near 83.
Monday Night
 
Partly cloudy, with a low around 63.
Tuesday
 
Mostly sunny, with a high near 86.
Tuesday Night
 
Partly cloudy, with a low around 65.
Wednesday
 
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.