National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Mon, Jun-01-2026 3:33am CDT
Cottage Grove
 
  Monday

Monday: Isolated Rain Showers then Mostly Cloudy
Isolated Rain Showers then Mostly Cloudy
Tuesday

Tuesday: Sunny
Sunny
Wednesday

Wednesday: Sunny
Sunny
Thursday

Thursday: Partly Sunny
Partly Sunny
Friday

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

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

Sunday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
  Hi 76 °F Hi 78 °F Hi 82 °F Hi 85 °F Hi 84 °F Hi 85 °F Hi 87 °F
 
Overnight

Overnight: Rain Showers
Rain Showers
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Clear
Clear
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
Thursday
Night
Thursday Night: Mostly Cloudy then Chance Showers And Thunderstorms
Mostly Cloudy then 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
Chance Showers And T-Storms
 
Lo 56 °F Lo 49 °F Lo 49 °F Lo 56 °F Lo 62 °F Lo 62 °F Lo 62 °F  

 

Overnight
 
Rain showers. Mostly cloudy, with a low around 56. East wind around 0 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Monday
 
Isolated rain showers before 9am. Mostly cloudy, with a high near 76. Northeast wind 0 to 10 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 49. Northeast wind 0 to 5 mph.
Tuesday
 
Sunny, with a high near 78. East wind 5 to 10 mph.
Tuesday Night
 
Clear, with a low around 49. Southeast wind 0 to 5 mph.
Wednesday
 
Sunny, with a high near 82. South wind 0 to 5 mph.
Wednesday Night
 
Partly cloudy, with a low around 56. South wind around 5 mph.
Thursday
 
Partly sunny, with a high near 85. Southwest wind 5 to 15 mph.
Thursday Night
 
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Friday
 
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 84. Chance of precipitation is 40%.
Friday Night
 
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Saturday
 
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Saturday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Sunday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.