National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Sat, Jun-27-2026 1:22pm CDT
Cottage Grove
 
This
Afternoon
This Afternoon: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Partly Sunny then Isolated Rain Showers
Partly Sunny then Isolated Rain Showers
Monday

Monday: Slight Chance Rain Showers then Mostly Sunny
Slight Chance Rain Showers then Mostly Sunny
Tuesday

Tuesday: Sunny
Sunny
Wednesday

Wednesday: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Thursday

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

Friday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Hi 78 °F Hi 82 °F Hi 92 °F Hi 94 °F Hi 91 °F Hi 92 °F Hi 90 °F  
 
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Mostly Clear then Slight Chance Showers And Thunderstorms
Mostly Clear then Slight Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Friday
Night
Friday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Lo 58 °F Lo 71 °F Lo 75 °F Lo 75 °F Lo 74 °F Lo 72 °F Lo 70 °F  

 

This Afternoon
 
Mostly sunny, with a high near 78. East wind around 10 mph.
Tonight
 
Partly cloudy, with a low around 58. East wind 5 to 10 mph.
Sunday
 
Isolated rain showers between 1pm and 2pm. Partly sunny, with a high near 82. Southeast wind 5 to 15 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Sunday Night
 
A slight chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 71. Southeast wind 10 to 15 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Monday
 
A slight chance of rain showers before 7am. Mostly sunny, with a high near 92. South wind 10 to 15 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Monday Night
 
Mostly clear, with a low around 75. Southwest wind 10 to 15 mph.
Tuesday
 
Sunny, with a high near 94. Southwest wind 10 to 15 mph.
Tuesday Night
 
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 75. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.
Wednesday
 
A slight chance of showers and thunderstorms. Sunny, with a high near 91. Chance of precipitation is 20%.
Wednesday Night
 
A slight chance of showers and thunderstorms. Mostly clear, with a low around 74. Chance of precipitation is 20%.
Thursday
 
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Sunny, with a high near 92. Chance of precipitation is 30%.
Thursday Night
 
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 40%.
Friday
 
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
Friday Night
 
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 50%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.