National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Sun, May-10-2026 5:46am CDT
Cottage Grove
 
Today

Today: Mostly Sunny
Mostly Sunny
Monday

Monday: Areas Of Frost then Sunny
Areas Of Frost then Sunny
Tuesday

Tuesday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny
Thursday

Thursday: Sunny
Sunny
Friday

Friday: Chance Rain Showers
Chance Rain Showers
Saturday

Saturday: Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Chance Showers And T-Storms then Slight Chance Showers And T-Storms
 
Hi 60 °F Hi 61 °F Hi 74 °F Hi 62 °F Hi 69 °F Hi 77 °F Hi 80 °F  
 
Tonight

Tonight: Partly Cloudy then Areas Of Frost
Partly Cloudy then Areas Of Frost
Monday
Night
Monday Night: Partly Cloudy then Slight Chance Rain Showers
Partly Cloudy then Slight Chance Rain Showers
Tuesday
Night
Tuesday Night: Chance Showers And Thunderstorms then Mostly Clear
Chance Showers And T-Storms then Mostly Clear
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday
Night
Thursday Night: Chance Rain Showers
Chance Rain Showers
Friday
Night
Friday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Saturday
Night
Saturday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
 
Lo 35 °F Lo 40 °F Lo 46 °F Lo 40 °F Lo 49 °F Lo 54 °F Lo 54 °F  

 

Today
 
Mostly sunny, with a high near 60. West wind 0 to 15 mph.
Tonight
 
Areas of frost after 4am. Partly cloudy, with a low around 35. North wind 0 to 10 mph.
Monday
 
Areas of frost before 7am. Sunny, with a high near 61. Northeast wind 0 to 5 mph.
Monday Night
 
A slight chance of rain showers after 1am. Partly cloudy, with a low around 40. Southeast wind 0 to 10 mph. Chance of precipitation is 20%.
Tuesday
 
A slight chance of rain showers before 7am, then showers and thunderstorms likely. Partly sunny, with a high near 74. Southwest wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Tuesday Night
 
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 46. Northwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Wednesday
 
Mostly sunny, with a high near 62. Northwest wind around 15 mph, with gusts as high as 30 mph.
Wednesday Night
 
Mostly clear, with a low around 40. North wind 0 to 10 mph.
Thursday
 
Sunny, with a high near 69.
Thursday Night
 
A chance of rain showers after 7pm. Partly cloudy, with a low around 49. Chance of precipitation is 40%.
Friday
 
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 77. Chance of precipitation is 40%.
Friday Night
 
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 54. Chance of precipitation is 30%.
Saturday
 
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
Saturday Night
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54. Chance of precipitation is 20%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.