National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Fri, Jul-31-2026 11:31am CDT
Cottage Grove
 
Today

Today: Showers And Thunderstorms
Showers And T-Storms
Saturday

Saturday: Rain Showers
Rain Showers
Sunday

Sunday: Mostly Sunny
Mostly Sunny
Monday

Monday: Sunny
Sunny
Tuesday

Tuesday: Sunny
Sunny
Wednesday

Wednesday: Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms then Chance Showers And T-Storms
Thursday

Thursday: Chance Rain Showers then Slight Chance Showers And Thunderstorms
Chance Rain Showers then Slight Chance Showers And T-Storms
 
Hi 77 °F Hi 74 °F Hi 78 °F Hi 81 °F Hi 85 °F Hi 83 °F Hi 82 °F  
 
Tonight

Tonight: Showers And Thunderstorms
Showers And T-Storms
Saturday
Night
Saturday Night: Mostly Cloudy
Mostly Cloudy
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Partly Cloudy then Slight Chance Showers And Thunderstorms
Partly Cloudy then Slight Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Thursday
Night
Thursday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
 
Lo 63 °F Lo 61 °F Lo 54 °F Lo 58 °F Lo 64 °F Lo 61 °F Lo 63 °F  

 

Today
 
A chance of rain showers before 1pm, then showers and thunderstorms. Cloudy. High near 77, with temperatures falling to around 69 in the afternoon. Southeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
 
Showers and thunderstorms. Cloudy, with a low around 63. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday
 
Rain showers before 5pm. Cloudy, with a high near 74. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
 
Mostly cloudy, with a low around 61. Northeast wind 10 to 15 mph. New rainfall amounts less than a tenth of an inch possible.
Sunday
 
Mostly sunny, with a high near 78. North wind around 10 mph.
Sunday Night
 
Mostly clear, with a low around 54. Northeast wind 0 to 5 mph.
Monday
 
Sunny, with a high near 81. East wind 0 to 5 mph.
Monday Night
 
Mostly clear, with a low around 58. Southeast wind 0 to 5 mph.
Tuesday
 
Sunny, with a high near 85.
Tuesday Night
 
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
Wednesday
 
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Wednesday Night
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
Thursday
 
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Thursday Night
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 20%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.