National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Wed, Jul-29-2026 11:51am CDT
Cottage Grove
 
This
Afternoon
This Afternoon: Sunny
Sunny
Thursday

Thursday: Mostly Sunny then Patchy Smoke
Mostly Sunny then Patchy Smoke
Friday

Friday: Showers And Thunderstorms
Showers And T-Storms
Saturday

Saturday: Rain Showers Likely
Rain Showers Likely
Sunday

Sunday: Mostly Sunny
Mostly Sunny
Monday

Monday: Sunny
Sunny
Tuesday

Tuesday: Sunny
Sunny
 
Hi 84 °F Hi 87 °F Hi 76 °F Hi 79 °F Hi 81 °F Hi 83 °F Hi 86 °F  
 
Tonight

Tonight: Patchy Smoke then Mostly Clear
Patchy Smoke then Mostly Clear
Thursday
Night
Thursday Night: Patchy Smoke then Mostly Cloudy
Patchy Smoke then Mostly Cloudy
Friday
Night
Friday Night: Showers And Thunderstorms
Showers And T-Storms
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
 
Lo 61 °F Lo 63 °F Lo 60 °F Lo 59 °F Lo 59 °F Lo 61 °F Lo 64 °F  

 

This Afternoon
 
Sunny, with a high near 84. Northeast wind around 0 mph.
Tonight
 
Patchy smoke before 10pm. Mostly clear, with a low around 61. South wind around 0 mph.
Thursday
 
Patchy smoke after 2pm. Mostly sunny, with a high near 87. Southwest wind 0 to 5 mph.
Thursday Night
 
Patchy smoke before 10pm. Mostly cloudy, with a low around 63. South wind around 5 mph.
Friday
 
A chance of rain showers before 1pm, then showers and thunderstorms. Mostly cloudy, with a high near 76. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
 
Showers and thunderstorms. Cloudy, with a low around 60. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Saturday
 
Rain showers likely before 1pm. Partly sunny, with a high near 79. Northeast wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
 
Partly cloudy, with a low around 59. Northeast wind around 5 mph.
Sunday
 
Mostly sunny, with a high near 81.
Sunday Night
 
Mostly clear, with a low around 59.
Monday
 
Sunny, with a high near 83.
Monday Night
 
Mostly clear, with a low around 61.
Tuesday
 
Sunny, with a high near 86.
Tuesday Night
 
Partly cloudy, with a low around 64.

 

Forecast from NOAA-NWS for Cottage Grove, WI.