National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Sat, Jun-13-2026 12:32am CDT
Cottage Grove
 
  Saturday

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

Sunday: Mostly Sunny
Mostly Sunny
Monday

Monday: Sunny
Sunny
Tuesday

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

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

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

Juneteenth: Sunny
Sunny
  Hi 81 °F Hi 68 °F Hi 72 °F Hi 75 °F Hi 76 °F Hi 76 °F Hi 78 °F
 
Overnight

Overnight: Mostly Clear
Mostly Clear
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Tuesday
Night
Tuesday Night: Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers And T-Storms Likely then Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Showers And Thunderstorms
Showers And T-Storms
Thursday
Night
Thursday Night: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear
 
Lo 64 °F Lo 54 °F Lo 50 °F Lo 53 °F Lo 53 °F Lo 56 °F Lo 54 °F  

 

Overnight
 
Mostly clear, with a low around 64. Southwest wind 5 to 10 mph.
Saturday
 
A slight chance of showers and thunderstorms between 2pm and 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 81. Southwest wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Saturday Night
 
A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms between 10pm and midnight, then a slight chance of showers and thunderstorms between midnight and 3am. Mostly cloudy, with a low around 54. Northwest wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunday
 
Mostly sunny, with a high near 68. Northwest wind 10 to 15 mph. New rainfall amounts less than a tenth of an inch possible.
Sunday Night
 
Mostly clear, with a low around 50. West wind 5 to 10 mph.
Monday
 
Sunny, with a high near 72. West wind 5 to 10 mph.
Monday Night
 
Partly cloudy, with a low around 53. Southwest wind 5 to 10 mph.
Tuesday
 
A slight chance of rain showers between 7am and 1pm, then showers and thunderstorms likely. Mostly sunny, with a high near 75. Southwest wind 10 to 15 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Tuesday Night
 
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 53. Chance of precipitation is 70%.
Wednesday
 
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm, then showers and thunderstorms likely. Mostly sunny, with a high near 76. Chance of precipitation is 70%.
Wednesday Night
 
Showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 80%.
Thursday
 
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 76. Chance of precipitation is 50%.
Thursday Night
 
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 54. Chance of precipitation is 20%.
Juneteenth
 
Sunny, with a high near 78.

 

Forecast from NOAA-NWS for Cottage Grove, WI.