National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Sat, Jun-20-2026 5:03pm CDT
Cottage Grove
 
This
Afternoon
This Afternoon: Partly Sunny
Partly Sunny
Sunday

Sunday: Mostly Cloudy then Rain Showers Likely
Mostly Cloudy then Rain Showers Likely
Monday

Monday: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Wednesday

Wednesday: Showers And Thunderstorms
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: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
 
Hi 74 °F Hi 69 °F Hi 76 °F Hi 75 °F Hi 75 °F Hi 75 °F Hi 78 °F  
 
Tonight

Tonight: Mostly Clear
Mostly Clear
Sunday
Night
Sunday Night: Rain Showers Likely
Rain Showers Likely
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
Showers And T-Storms Likely then Slight Chance Showers And T-Storms
Thursday
Night
Thursday Night: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
Friday
Night
Friday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
 
Lo 53 °F Lo 53 °F Lo 51 °F Lo 56 °F Lo 54 °F Lo 54 °F Lo 56 °F  

 

This Afternoon
 
Partly sunny, with a high near 74. West wind around 5 mph.
Tonight
 
Mostly clear, with a low around 53. Northwest wind 0 to 5 mph.
Sunday
 
Rain showers likely after noon. Mostly cloudy, with a high near 69. Southeast wind 0 to 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Sunday Night
 
Rain showers likely before 1am. Mostly cloudy, with a low around 53. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Monday
 
Mostly sunny, with a high near 76. Northeast wind 5 to 10 mph.
Monday Night
 
Mostly clear, with a low around 51. East wind 0 to 5 mph.
Tuesday
 
Mostly sunny, with a high near 75. West wind 0 to 5 mph.
Tuesday Night
 
A chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms. Mostly cloudy, with a low around 56. South wind 0 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Wednesday
 
Showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitation is 80%.
Wednesday Night
 
Showers and thunderstorms likely before 7pm, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 54. Chance of precipitation is 70%.
Thursday
 
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 75. Chance of precipitation is 20%.
Thursday Night
 
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 54. Chance of precipitation is 20%.
Friday
 
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. Chance of precipitation is 20%.
Friday Night
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 56. Chance of precipitation is 20%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.