National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Sun, Jun-21-2026 5:57am CDT
Cottage Grove
 
Today

Today: Mostly Cloudy then Rain Showers Likely
Mostly Cloudy then Rain Showers Likely
Monday

Monday: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Wednesday

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

Thursday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Friday

Friday: Mostly Sunny
Mostly Sunny
Saturday

Saturday: Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms then Chance Showers And T-Storms
 
Hi 71 °F Hi 76 °F Hi 76 °F Hi 76 °F Hi 75 °F Hi 78 °F Hi 80 °F  
 
Tonight

Tonight: Chance Rain Showers then Mostly Cloudy
Chance Rain Showers then Mostly Cloudy
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
Showers And T-Storms Likely then Slight Chance Showers And T-Storms
Thursday
Night
Thursday Night: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
Friday
Night
Friday Night: Partly Cloudy then Slight Chance Showers And Thunderstorms
Partly Cloudy then Slight Chance Showers And T-Storms
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Lo 54 °F Lo 51 °F Lo 56 °F Lo 55 °F Lo 54 °F Lo 57 °F Lo 63 °F  

 

Today
 
Rain showers likely after noon. Mostly cloudy. High near 71, with temperatures falling to around 66 in the afternoon. East wind 0 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
 
A chance of rain showers before midnight. Mostly cloudy, with a low around 54. Northeast wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Monday
 
Mostly sunny, with a high near 76. Northeast wind around 10 mph.
Monday Night
 
Mostly clear, with a low around 51. Northeast wind 0 to 10 mph.
Tuesday
 
Mostly sunny, with a high near 76. South wind 0 to 5 mph.
Tuesday Night
 
A slight chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 56. South wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Wednesday
 
Showers and thunderstorms likely. Partly sunny, with a high near 76. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Wednesday Night
 
Showers and thunderstorms likely before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 55. West wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Thursday
 
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 75. Chance of precipitation is 20%.
Thursday Night
 
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 54. Chance of precipitation is 20%.
Friday
 
Mostly sunny, with a high near 78.
Friday Night
 
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57. Chance of precipitation is 20%.
Saturday
 
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Saturday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 40%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.