National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Thu, Jul-09-2026 7:57am CDT
Cottage Grove
 
Today

Today: Slight Chance Showers And Thunderstorms then Scattered Showers And Thunderstorms
Slight Chance Showers And T-Storms then Scattered Showers And T-Storms
Friday

Friday: Patchy Fog then Mostly Sunny
Patchy Fog then Mostly Sunny
Saturday

Saturday: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Sunny
Sunny
Monday

Monday: Sunny
Sunny
Tuesday

Tuesday: Sunny
Sunny
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny
 
Hi 81 °F Hi 82 °F Hi 84 °F Hi 86 °F Hi 88 °F Hi 90 °F Hi 88 °F  
 
Tonight

Tonight: Chance Showers And Thunderstorms then Patchy Fog
Chance Showers And T-Storms then Patchy Fog
Friday
Night
Friday Night: Partly Cloudy
Partly Cloudy
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday
Night
Sunday Night: Clear
Clear
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
 
Lo 62 °F Lo 60 °F Lo 64 °F Lo 66 °F Lo 68 °F Lo 70 °F Lo 66 °F  

 

Today
 
A slight chance of showers and thunderstorms before 11am, then scattered showers and thunderstorms between 11am and 1pm, then a chance of showers and thunderstorms. Cloudy, with a high near 81. West wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Tonight
 
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 11pm, then patchy fog. Mostly cloudy, with a low around 62. Northeast wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Friday
 
Patchy fog before 8am. Mostly sunny, with a high near 82. Northeast wind around 5 mph.
Friday Night
 
Partly cloudy, with a low around 60. Northeast wind 0 to 5 mph.
Saturday
 
Mostly sunny, with a high near 84. Northeast wind 0 to 5 mph.
Saturday Night
 
Mostly clear, with a low around 64. Southeast wind around 0 mph.
Sunday
 
Sunny, with a high near 86. Southwest wind 0 to 5 mph.
Sunday Night
 
Clear, with a low around 66. Southwest wind 0 to 5 mph.
Monday
 
Sunny, with a high near 88.
Monday Night
 
Mostly clear, with a low around 68.
Tuesday
 
Sunny, with a high near 90.
Tuesday Night
 
Mostly clear, with a low around 70.
Wednesday
 
Mostly sunny, with a high near 88.
Wednesday Night
 
Mostly clear, with a low around 66.

 

Forecast from NOAA-NWS for Cottage Grove, WI.