National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Tue, Jun-16-2026 4:46pm CDT
Cottage Grove
 
  Wednesday

Wednesday: Showers And Thunderstorms
Showers And T-Storms
Thursday

Thursday: Partly Sunny then Slight Chance Showers And Thunderstorms
Partly Sunny then Slight Chance Showers And T-Storms
Juneteenth

Juneteenth: Sunny
Sunny
Saturday

Saturday: Slight Chance Rain Showers then Sunny
Slight Chance Rain Showers then Sunny
Sunday

Sunday: Chance Rain Showers
Chance Rain Showers
Monday

Monday: Chance Rain Showers
Chance Rain Showers
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
  Hi 65 °F Hi 72 °F Hi 73 °F Hi 77 °F Hi 75 °F Hi 75 °F Hi 78 °F
 
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Chance Showers And T-Storms then Showers And T-Storms Likely
Thursday
Night
Thursday Night: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear
Friday
Night
Friday Night: Mostly Clear then Slight Chance Rain Showers
Mostly Clear then Slight Chance Rain Showers
Saturday
Night
Saturday Night: Partly Cloudy then Chance Rain Showers
Partly Cloudy then Chance Rain Showers
Sunday
Night
Sunday Night: Chance Rain Showers
Chance Rain Showers
Monday
Night
Monday Night: Slight Chance Rain Showers then Partly Cloudy
Slight Chance Rain Showers then Partly Cloudy
 
Lo 51 °F Lo 54 °F Lo 51 °F Lo 54 °F Lo 55 °F Lo 54 °F Lo 54 °F  

 

Tonight
 
Mostly cloudy, with a low around 51. West wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible.
Wednesday
 
Rain showers between 7am and 10am, then showers and thunderstorms between 10am and 5pm, then a chance of showers and thunderstorms. Cloudy, with a high near 65. South wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Wednesday Night
 
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely between 8pm and 9pm, then a chance of showers and thunderstorms between 9pm and 11pm, then showers and thunderstorms likely between 11pm and 5am. Mostly cloudy, with a low around 54. Southwest wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
 
A slight chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 72. Northwest wind 10 to 15 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Thursday Night
 
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 51. West wind 5 to 10 mph. Chance of precipitation is 20%.
Juneteenth
 
Sunny, with a high near 73. Northwest wind 5 to 10 mph.
Friday Night
 
A slight chance of rain showers after 1am. Mostly clear, with a low around 54. West wind 0 to 10 mph. Chance of precipitation is 20%.
Saturday
 
A slight chance of rain showers before 7am. Sunny, with a high near 77. West wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday Night
 
A chance of rain showers after 1am. Partly cloudy, with a low around 55. Chance of precipitation is 30%.
Sunday
 
A chance of rain showers. Partly sunny, with a high near 75. Chance of precipitation is 50%.
Sunday Night
 
A chance of rain showers. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.
Monday
 
A chance of rain showers. Mostly sunny, with a high near 75. Chance of precipitation is 30%.
Monday Night
 
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 54. Chance of precipitation is 20%.
Tuesday
 
Mostly sunny, with a high near 78.

 

Forecast from NOAA-NWS for Cottage Grove, WI.