National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Thu, Jul-30-2026 8:42am CDT
Cottage Grove
 
Today

Today: Mostly Sunny then Patchy Smoke
Mostly Sunny then Patchy Smoke
Friday

Friday: Cloudy then Showers And Thunderstorms Likely
Cloudy then Showers And T-Storms Likely
Saturday

Saturday: Rain Showers Likely
Rain Showers Likely
Sunday

Sunday: Sunny
Sunny
Monday

Monday: Sunny
Sunny
Tuesday

Tuesday: Sunny
Sunny
Wednesday

Wednesday: Chance Rain Showers then Chance Showers And Thunderstorms
Chance Rain Showers then Chance Showers And T-Storms
 
Hi 87 °F Hi 75 °F Hi 79 °F Hi 81 °F Hi 84 °F Hi 86 °F Hi 85 °F  
 
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy
Friday
Night
Friday Night: Showers And Thunderstorms
Showers And T-Storms
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Partly Cloudy then Chance Rain Showers
Partly Cloudy then Chance Rain Showers
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Lo 64 °F Lo 63 °F Lo 59 °F Lo 56 °F Lo 61 °F Lo 65 °F Lo 62 °F  

 

Today
 
Patchy smoke between noon and 2pm. Mostly sunny, with a high near 87. Southwest wind around 5 mph.
Tonight
 
Mostly cloudy, with a low around 64. South wind 0 to 5 mph.
Friday
 
Showers and thunderstorms likely after 1pm. Cloudy, with a high near 75. Southeast wind 0 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
 
Showers and thunderstorms. Cloudy, with a low around 63. East wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Saturday
 
Rain showers likely before 1pm. Partly sunny, with a high near 79. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
 
Mostly clear, with a low around 59. Northeast wind around 5 mph.
Sunday
 
Sunny, with a high near 81. Northeast wind 5 to 10 mph.
Sunday Night
 
Mostly clear, with a low around 56. East wind 0 to 5 mph.
Monday
 
Sunny, with a high near 84.
Monday Night
 
Mostly clear, with a low around 61.
Tuesday
 
Sunny, with a high near 86.
Tuesday Night
 
A chance of rain showers after 1am. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Wednesday
 
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Wednesday Night
 
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.