National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Sun, May-03-2026 10:33am CDT
Cottage Grove
 
Today

Today: Sunny
Sunny
Monday

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

Tuesday: Chance Rain Showers
Chance Rain Showers
Wednesday

Wednesday: Areas Of Frost then Partly Sunny
Areas Of Frost then Partly Sunny
Thursday

Thursday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Friday

Friday: Slight Chance Rain Showers
Slight Chance Rain Showers
Saturday

Saturday: Mostly Sunny
Mostly Sunny
 
Hi 70 °F Hi 76 °F Hi 55 °F Hi 56 °F Hi 58 °F Hi 61 °F Hi 64 °F  
 
Tonight

Tonight: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Tuesday
Night
Tuesday Night: Chance Rain Showers then Areas Of Frost
Chance Rain Showers then Areas Of Frost
Wednesday
Night
Wednesday Night: Mostly Cloudy
Mostly Cloudy
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Friday
Night
Friday Night: Slight Chance Rain Showers
Slight Chance Rain Showers
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
 
Lo 44 °F Lo 43 °F Lo 36 °F Lo 37 °F Lo 37 °F Lo 40 °F Lo 42 °F  

 

Today
 
Sunny, with a high near 70. Southwest wind 15 to 20 mph, with gusts as high as 35 mph. New rainfall amounts less than a tenth of an inch possible.
Tonight
 
Mostly clear, with a low around 44. Southwest wind 5 to 10 mph.
Monday
 
A slight chance of rain showers between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 76. Southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Monday Night
 
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 43. Northwest wind 5 to 15 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Tuesday
 
A chance of rain showers. Mostly cloudy, with a high near 55. North wind 5 to 10 mph. Chance of precipitation is 30%.
Tuesday Night
 
A chance of rain showers before 7pm, then areas of frost. Mostly cloudy, with a low around 36. Northwest wind 5 to 10 mph. Chance of precipitation is 30%.
Wednesday
 
Areas of frost before 7am. Partly sunny, with a high near 56. Northwest wind 5 to 10 mph.
Wednesday Night
 
Mostly cloudy, with a low around 37. West wind 0 to 5 mph.
Thursday
 
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 58. Chance of precipitation is 40%.
Thursday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 37. Chance of precipitation is 40%.
Friday
 
A slight chance of rain showers. Mostly sunny, with a high near 61. Chance of precipitation is 20%.
Friday Night
 
A slight chance of rain showers before 1am. Mostly cloudy, with a low around 40. Chance of precipitation is 20%.
Saturday
 
Mostly sunny, with a high near 64.
Saturday Night
 
Mostly clear, with a low around 42.

 

Forecast from NOAA-NWS for Cottage Grove, WI.