National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Sat, Aug-01-2026 1:21pm CDT
Cottage Grove
 
This
Afternoon
This Afternoon: Chance Rain Showers
Chance Rain Showers
Sunday

Sunday: Partly Sunny
Partly Sunny
Monday

Monday: Sunny
Sunny
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Wednesday

Wednesday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Thursday

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

Friday: Slight Chance Rain Showers then Mostly Sunny
Slight Chance Rain Showers then Mostly Sunny
 
Hi 73 °F Hi 77 °F Hi 80 °F Hi 82 °F Hi 78 °F Hi 79 °F Hi 83 °F  
 
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Thursday
Night
Thursday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Friday
Night
Friday Night: Partly Cloudy then Slight Chance Showers And Thunderstorms
Partly Cloudy then Slight Chance Showers And T-Storms
 
Lo 61 °F Lo 54 °F Lo 57 °F Lo 62 °F Lo 57 °F Lo 61 °F Lo 65 °F  

 

This Afternoon
 
A chance of rain showers before 4pm. Mostly cloudy, with a high near 73. Northeast wind 10 to 15 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Tonight
 
Mostly cloudy, with a low around 61. Northeast wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible.
Sunday
 
Partly sunny, with a high near 77. North wind around 10 mph.
Sunday Night
 
Mostly clear, with a low around 54. Northeast wind 0 to 10 mph.
Monday
 
Sunny, with a high near 80. Northeast wind 0 to 5 mph.
Monday Night
 
Mostly clear, with a low around 57. Southeast wind around 0 mph.
Tuesday
 
Mostly sunny, with a high near 82. Southwest wind 0 to 5 mph.
Tuesday Night
 
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. West wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Wednesday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 50%.
Wednesday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Thursday
 
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 79. Chance of precipitation is 20%.
Thursday Night
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
Friday
 
A slight chance of rain showers before 7am. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Friday Night
 
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Chance of precipitation is 20%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.