National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Fri, Jun-05-2026 9:57pm CDT
Cottage Grove
 
  Saturday

Saturday: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Partly Sunny
Partly Sunny
Monday

Monday: Showers And Thunderstorms
Showers And T-Storms
Tuesday

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

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

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

Friday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
  Hi 85 °F Hi 81 °F Hi 80 °F Hi 88 °F Hi 92 °F Hi 94 °F Hi 91 °F
 
Tonight

Tonight: Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Chance Showers And T-Storms then Showers And T-Storms Likely
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Mostly Cloudy then Chance Showers And Thunderstorms
Mostly Cloudy then Chance Showers And T-Storms
Monday
Night
Monday Night: Showers And Thunderstorms
Showers And T-Storms
Tuesday
Night
Tuesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Lo 65 °F Lo 61 °F Lo 62 °F Lo 66 °F Lo 68 °F Lo 72 °F Lo 71 °F  

 

Tonight
 
A chance of showers and thunderstorms before 11pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 65. West wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday
 
Mostly sunny, with a high near 85. Northwest wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
Saturday Night
 
Partly cloudy, with a low around 61. East wind 0 to 5 mph.
Sunday
 
Partly sunny, with a high near 81. East wind 5 to 10 mph.
Sunday Night
 
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Monday
 
Showers and thunderstorms. Mostly cloudy, with a high near 80. Southeast wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
 
Showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
 
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. South wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Tuesday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Wednesday
 
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Wednesday Night
 
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Thursday
 
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Chance of precipitation is 20%.
Thursday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Friday
 
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.