National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Tue, May-12-2026 5:32pm CDT
Cottage Grove
 
This
Afternoon
This Afternoon: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Wednesday

Wednesday: Partly Sunny
Partly Sunny
Thursday

Thursday: Sunny
Sunny
Friday

Friday: Rain Showers Likely then Slight Chance Showers And Thunderstorms
Rain Showers Likely then Slight Chance Showers And T-Storms
Saturday

Saturday: Slight Chance Rain Showers
Slight Chance Rain Showers
Sunday

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

Monday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
 
Hi 72 °F Hi 64 °F Hi 70 °F Hi 79 °F Hi 82 °F Hi 79 °F Hi 82 °F  
 
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday
Night
Thursday Night: Rain Showers Likely
Rain Showers Likely
Friday
Night
Friday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Sunday
Night
Sunday Night: Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Chance Showers And T-Storms then Showers And T-Storms Likely
Monday
Night
Monday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Lo 45 °F Lo 39 °F Lo 48 °F Lo 54 °F Lo 53 °F Lo 59 °F Lo 55 °F  

Wind Advisory issued May 12 at 3:45PM CDT until May 12 at 8:00PM CDT
 

This Afternoon
 
A chance of showers and thunderstorms. Partly sunny, with a high near 72. Southwest wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Tonight
 
Partly cloudy, with a low around 45. Northwest wind 10 to 15 mph, with gusts as high as 40 mph. New rainfall amounts less than a tenth of an inch possible.
Wednesday
 
Partly sunny, with a high near 64. North wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
 
Mostly clear, with a low around 39. North wind 0 to 15 mph.
Thursday
 
Sunny, with a high near 70. Southeast wind 0 to 10 mph.
Thursday Night
 
Rain showers likely after 7pm. Mostly cloudy, with a low around 48. Southeast wind 10 to 15 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Friday
 
Rain showers likely before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Friday Night
 
A slight chance of showers and thunderstorms. Mostly clear, with a low around 54. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday
 
A slight chance of rain showers. Sunny, with a high near 82. Chance of precipitation is 20%.
Saturday Night
 
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 53. Chance of precipitation is 40%.
Sunday
 
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Sunday Night
 
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.
Monday
 
Showers and thunderstorms likely. Partly sunny, with a high near 82. Chance of precipitation is 70%.
Monday Night
 
Rain showers likely before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.