National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Fri, Jul-17-2026 12:31am CDT
Cottage Grove
 
  Friday

Friday: Areas Of Smoke then Slight Chance Showers And Thunderstorms
Areas Of Smoke then Slight Chance Showers And T-Storms
Saturday

Saturday: Sunny
Sunny
Sunday

Sunday: Sunny
Sunny
Monday

Monday: Chance Rain Showers then Chance Showers And Thunderstorms
Chance Rain Showers then Chance Showers And T-Storms
Tuesday

Tuesday: Slight Chance Rain Showers then Sunny
Slight Chance Rain Showers then Sunny
Wednesday

Wednesday: Sunny
Sunny
Thursday

Thursday: Sunny
Sunny
  Hi 90 °F Hi 88 °F Hi 85 °F Hi 88 °F Hi 82 °F Hi 78 °F Hi 81 °F
 
Overnight

Overnight: Smoke
Smoke
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
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: Mostly Clear
Mostly Clear
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
 
Lo 68 °F Lo 73 °F Lo 62 °F Lo 65 °F Lo 67 °F Lo 58 °F Lo 57 °F  

Air Quality Alert issued July 16 at 9:19AM CDT
 

Overnight
 
Smoke. Mostly cloudy, with a low around 68. Southeast wind 0 to 5 mph.
Friday
 
Areas of smoke before 9am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 95. Southwest wind around 5 mph. Chance of precipitation is 20%.
Friday Night
 
Mostly clear, with a low around 73. Southwest wind 5 to 10 mph.
Saturday
 
Sunny, with a high near 88. Northwest wind around 10 mph.
Saturday Night
 
Mostly clear, with a low around 62. Northeast wind 0 to 10 mph.
Sunday
 
Sunny, with a high near 85. East wind 0 to 5 mph.
Sunday Night
 
Partly cloudy, with a low around 65. South wind around 5 mph.
Monday
 
A chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Monday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 40%.
Tuesday
 
A slight chance of rain showers before 7am. Sunny, with a high near 82. Chance of precipitation is 20%.
Tuesday Night
 
Mostly clear, with a low around 58.
Wednesday
 
Sunny, with a high near 78.
Wednesday Night
 
Mostly clear, with a low around 57.
Thursday
 
Sunny, with a high near 81.

 

Forecast from NOAA-NWS for Cottage Grove, WI.