National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Sat, May-02-2026 8:37am CDT
Cottage Grove
 
Today

Today: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Chance Rain Showers
Chance Rain Showers
Monday

Monday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
Tuesday

Tuesday: Chance Rain Showers
Chance Rain Showers
Wednesday

Wednesday: Partly Sunny then Slight Chance Rain Showers
Partly Sunny then Slight Chance Rain Showers
Thursday

Thursday: Chance Rain Showers
Chance Rain Showers
Friday

Friday: Slight Chance Rain Showers
Slight Chance Rain Showers
 
Hi 57 °F Hi 66 °F Hi 74 °F Hi 58 °F Hi 55 °F Hi 57 °F Hi 61 °F  
 
Tonight

Tonight: Mostly Cloudy then Slight Chance Rain Showers
Mostly Cloudy then Slight Chance Rain Showers
Sunday
Night
Sunday Night: Slight Chance Rain Showers then Mostly Clear
Slight Chance Rain Showers then Mostly Clear
Monday
Night
Monday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Tuesday
Night
Tuesday Night: Chance Rain Showers
Chance Rain Showers
Wednesday
Night
Wednesday Night: Slight Chance Rain Showers
Slight Chance Rain Showers
Thursday
Night
Thursday Night: Chance Rain Showers then Partly Cloudy
Chance Rain Showers then Partly Cloudy
Friday
Night
Friday Night: Slight Chance Rain Showers
Slight Chance Rain Showers
 
Lo 42 °F Lo 43 °F Lo 43 °F Lo 38 °F Lo 38 °F Lo 38 °F Lo 42 °F  

 

Today
 
Mostly sunny, with a high near 57. West wind 5 to 10 mph.
Tonight
 
A slight chance of rain showers after 5am. Mostly cloudy, with a low around 42. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday
 
A chance of rain showers. Partly sunny, with a high near 66. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Sunday Night
 
A slight chance of rain showers before 7pm. Mostly clear, with a low around 43. West wind 5 to 10 mph. Chance of precipitation is 20%.
Monday
 
A chance of rain showers between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 74. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Monday Night
 
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 43. West wind 5 to 15 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Tuesday
 
A chance of rain showers after 7am. Mostly cloudy, with a high near 58. Northwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Tuesday Night
 
A chance of rain showers before 1am. Mostly cloudy, with a low around 38. North wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Wednesday
 
A slight chance of rain showers after 1pm. Partly sunny, with a high near 55. Chance of precipitation is 20%.
Wednesday Night
 
A slight chance of rain showers before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 20%.
Thursday
 
A chance of rain showers after 7am. Partly sunny, with a high near 57. Chance of precipitation is 30%.
Thursday Night
 
A chance of rain showers before 7pm. Partly cloudy, with a low around 38. Chance of precipitation is 30%.
Friday
 
A slight chance of rain showers after 7am. Mostly sunny, with a high near 61. Chance of precipitation is 20%.
Friday Night
 
A slight chance of rain showers before 1am. Partly cloudy, with a low around 42. Chance of precipitation is 20%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.