National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Sun, Jun-07-2026 2:37am CDT
Cottage Grove
 
  Sunday

Sunday: Partly Sunny
Partly Sunny
Monday

Monday: Showers And Thunderstorms
Showers And T-Storms
Tuesday

Tuesday: Chance Rain Showers then Mostly Sunny
Chance Rain Showers then Mostly Sunny
Wednesday

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

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

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

Saturday: Chance Rain Showers then Slight Chance Showers And Thunderstorms
Chance Rain Showers then Slight Chance Showers And T-Storms
  Hi 83 °F Hi 84 °F Hi 89 °F Hi 93 °F Hi 86 °F Hi 82 °F Hi 80 °F
 
Overnight

Overnight: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Mostly Cloudy then Slight Chance Showers And Thunderstorms
Mostly Cloudy then Slight Chance Showers And T-Storms
Monday
Night
Monday Night: Showers And Thunderstorms
Showers And T-Storms
Tuesday
Night
Tuesday Night: Partly Cloudy then Chance Showers And Thunderstorms
Partly Cloudy then Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Slight Chance Showers And T-Storms then Showers And T-Storms Likely
Thursday
Night
Thursday Night: Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers And T-Storms Likely then Chance Showers And T-Storms
Friday
Night
Friday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Lo 60 °F Lo 62 °F Lo 65 °F Lo 69 °F Lo 70 °F Lo 63 °F Lo 61 °F  

 

Overnight
 
Partly cloudy, with a low around 60. East wind around 5 mph.
Sunday
 
Partly sunny, with a high near 83. East wind 5 to 15 mph.
Sunday Night
 
A slight chance of showers and thunderstorms between 1am and 3am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Monday
 
A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms between 10am and noon, then showers and thunderstorms. Mostly cloudy, with a high near 84. 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 65. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
 
A chance of rain showers before 7am. Mostly sunny, with a high near 89. Southwest wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Tuesday Night
 
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. South wind around 5 mph. Chance of precipitation is 30%.
Wednesday
 
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Wednesday Night
 
A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 70. Chance of precipitation is 70%.
Thursday
 
Showers and thunderstorms likely before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Thursday Night
 
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 60%.
Friday
 
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Friday Night
 
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Saturday
 
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.