National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Mon, Jul-27-2026 5:17pm CDT
Cottage Grove
 
This
Afternoon
This Afternoon: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Sunny
Sunny
Wednesday

Wednesday: Sunny
Sunny
Thursday

Thursday: Mostly Sunny
Mostly Sunny
Friday

Friday: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Saturday

Saturday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Sunday

Sunday: Mostly Sunny
Mostly Sunny
 
Hi 95 °F Hi 83 °F Hi 85 °F Hi 88 °F Hi 83 °F Hi 81 °F Hi 83 °F  
 
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday
Night
Thursday Night: Partly Cloudy then Slight Chance Showers And Thunderstorms
Partly Cloudy then Slight Chance Showers And T-Storms
Friday
Night
Friday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Chance Showers And T-Storms then Slight Chance Showers And T-Storms
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
 
Lo 65 °F Lo 60 °F Lo 64 °F Lo 66 °F Lo 65 °F Lo 62 °F Lo 60 °F  

Extreme Heat Warning issued July 27 at 1:54PM CDT until July 27 at 9:00PM CDT
 

This Afternoon
 
Mostly sunny. High near 95, with temperatures falling to around 84 in the afternoon. West wind around 10 mph. New rainfall amounts less than a tenth of an inch possible.
Tonight
 
Partly cloudy, with a low around 65. Northwest wind around 10 mph. New rainfall amounts less than a tenth of an inch possible.
Tuesday
 
Sunny, with a high near 83. North wind 5 to 10 mph.
Tuesday Night
 
Mostly clear, with a low around 60. Northeast wind 0 to 5 mph.
Wednesday
 
Sunny, with a high near 85. North wind 0 to 5 mph.
Wednesday Night
 
Mostly clear, with a low around 64. Southwest wind around 0 mph.
Thursday
 
Mostly sunny, with a high near 88. Southwest wind 0 to 5 mph.
Thursday Night
 
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Southwest wind 0 to 5 mph. Chance of precipitation is 20%.
Friday
 
A slight chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Chance of precipitation is 40%.
Friday 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. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Saturday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Saturday Night
 
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 62. Chance of precipitation is 40%.
Sunday
 
Mostly sunny, with a high near 83.
Sunday Night
 
Mostly clear, with a low around 60.

 

Forecast from NOAA-NWS for Cottage Grove, WI.