National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Thu, Sep-24-2026 2:31pm CDT
Cottage Grove
 
  Friday

Friday: Mostly Cloudy
Mostly Cloudy
Saturday

Saturday: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Partly Sunny
Partly Sunny
Monday

Monday: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Chance Rain Showers
Chance Rain Showers
Wednesday

Wednesday: Rain Showers Likely
Rain Showers Likely
Thursday

Thursday: Chance Rain Showers
Chance Rain Showers
  Hi 68 °F Hi 69 °F Hi 68 °F Hi 70 °F Hi 69 °F Hi 67 °F Hi 66 °F
 
Tonight

Tonight: Mostly Cloudy then Chance Rain Showers
Mostly Cloudy then Chance Rain Showers
Friday
Night
Friday Night: Partly Cloudy
Partly Cloudy
Saturday
Night
Saturday Night: Mostly Cloudy
Mostly Cloudy
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Tuesday
Night
Tuesday Night: Rain Showers Likely
Rain Showers Likely
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Lo 56 °F Lo 48 °F Lo 50 °F Lo 50 °F Lo 54 °F Lo 59 °F Lo 57 °F  

 

Tonight
 
A chance of rain showers between midnight and 4am. Mostly cloudy, with a low around 56. Southeast wind 0 to 5 mph. Chance of precipitation is 30%.
Friday
 
Mostly cloudy, with a high near 68. East wind 0 to 5 mph.
Friday Night
 
Partly cloudy, with a low around 48. East wind 0 to 5 mph.
Saturday
 
Mostly sunny, with a high near 69. Southeast wind 0 to 5 mph.
Saturday Night
 
Mostly cloudy, with a low around 50. East wind 0 to 5 mph.
Sunday
 
Partly sunny, with a high near 68. Southeast wind around 0 mph.
Sunday Night
 
Partly cloudy, with a low around 50. Northeast wind around 0 mph.
Monday
 
Mostly sunny, with a high near 70. Southeast wind 0 to 5 mph.
Monday Night
 
Partly cloudy, with a low around 54.
Tuesday
 
A chance of rain showers after 7am. Partly sunny, with a high near 69. Chance of precipitation is 40%.
Tuesday Night
 
Rain showers likely. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.
Wednesday
 
Rain showers likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
Wednesday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Thursday
 
A chance of rain showers. Partly sunny, with a high near 66. Chance of precipitation is 40%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.