National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Sat, Aug-30-2025 5:38pm CDT
Cottage Grove
 
This
Afternoon
This Afternoon: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Patchy Fog then Sunny
Patchy Fog then Sunny
Labor
Day
Labor Day: Patchy Fog then Sunny
Patchy Fog then Sunny
Tuesday

Tuesday: Sunny
Sunny
Wednesday

Wednesday: Rain Showers Likely
Rain Showers Likely
Thursday

Thursday: Partly Sunny
Partly Sunny
Friday

Friday: Mostly Sunny
Mostly Sunny
 
Hi 72 °F Hi 74 °F Hi 76 °F Hi 77 °F Hi 68 °F Hi 57 °F Hi 63 °F  
 
Tonight

Tonight: Mostly Clear then Patchy Fog
Mostly Clear then Patchy Fog
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Mostly Clear then Patchy Fog
Mostly Clear then Patchy Fog
Tuesday
Night
Tuesday Night: Partly Cloudy then Chance Rain Showers
Partly Cloudy then Chance Rain Showers
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
 
Lo 50 °F Lo 49 °F Lo 54 °F Lo 55 °F Lo 41 °F Lo 43 °F Lo 46 °F  

 

This Afternoon
 
Mostly sunny, with a high near 72. South wind around 5 mph.
Tonight
 
Patchy fog after 5am. Mostly clear, with a low around 50. East wind 0 to 5 mph.
Sunday
 
Patchy fog before 8am. Sunny, with a high near 74. Northeast wind 0 to 5 mph.
Sunday Night
 
Mostly clear, with a low around 49. East wind 0 to 5 mph.
Labor Day
 
Patchy fog before 7am. Sunny, with a high near 76. East wind 0 to 5 mph.
Monday Night
 
Patchy fog after 3am. Mostly clear, with a low around 54. Southeast wind around 0 mph.
Tuesday
 
Sunny, with a high near 77. South wind 0 to 5 mph.
Tuesday Night
 
A chance of rain showers after 1am. Partly cloudy, with a low around 55. Southwest wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Wednesday
 
Rain showers likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 68, with temperatures falling to around 60 in the afternoon. Chance of precipitation is 70%.
Wednesday Night
 
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 41. Chance of precipitation is 50%.
Thursday
 
Partly sunny, with a high near 57.
Thursday Night
 
Partly cloudy, with a low around 43.
Friday
 
Mostly sunny, with a high near 63.
Friday Night
 
Mostly clear, with a low around 46.

 

Forecast from NOAA-NWS for Cottage Grove, WI.