National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Fri, Jul-17-2026 12:52pm CDT
Cottage Grove
 
This
Afternoon
This Afternoon: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Saturday

Saturday: Chance Rain Showers then Patchy Smoke
Chance Rain Showers then Patchy Smoke
Sunday

Sunday: Sunny
Sunny
Monday

Monday: Chance Rain Showers then Chance Showers And Thunderstorms
Chance Rain Showers then Chance Showers And T-Storms
Tuesday

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

Wednesday: Sunny
Sunny
Thursday

Thursday: Sunny
Sunny
 
Hi 90 °F Hi 88 °F Hi 85 °F Hi 88 °F Hi 81 °F Hi 78 °F Hi 80 °F  
 
Tonight

Tonight: Chance Showers And Thunderstorms then Mostly Clear
Chance Showers And T-Storms then Mostly Clear
Saturday
Night
Saturday Night: Patchy Smoke then Mostly Clear
Patchy Smoke then Mostly Clear
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday
Night
Monday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy
 
Lo 73 °F Lo 62 °F Lo 65 °F Lo 68 °F Lo 58 °F Lo 57 °F Lo 59 °F  

 

This Afternoon
 
A slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 90. Heat index values as high as 95. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Tonight
 
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday
 
A chance of rain showers between 9am and 10am, then patchy smoke between noon and 1pm. Sunny, with a high near 88. Northwest wind around 10 mph. Chance of precipitation is 30%.
Saturday Night
 
Patchy smoke between 7pm and 8pm. Mostly clear, with a low around 62. Northeast wind 0 to 10 mph.
Sunday
 
Sunny, with a high near 85. East wind 0 to 5 mph.
Sunday Night
 
Partly cloudy, with a low around 65. South wind around 5 mph.
Monday
 
A chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Monday Night
 
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68. West wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Tuesday
 
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
Tuesday Night
 
Mostly clear, with a low around 58.
Wednesday
 
Sunny, with a high near 78.
Wednesday Night
 
Mostly clear, with a low around 57.
Thursday
 
Sunny, with a high near 80.
Thursday Night
 
Partly cloudy, with a low around 59.

 

Forecast from NOAA-NWS for Cottage Grove, WI.