Cottage Grove, WI Weather

68°F

Cottage Grove, WI

Updated: Aug-16-2026 10:40pm

Navigation

External Links

Alerts

Style Options

National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI

Updated: Sun, Aug-16-2026 8:41pm CDT

Cottage Grove

	Monday Patchy Fog then Mostly Sunny	Tuesday Mostly Sunny then Showers And T-Storms Likely	Wednesday Slight Chance Rain Showers then Mostly Sunny	Thursday Sunny	Friday Sunny then Slight Chance Rain Showers	Saturday Chance Rain Showers	Sunday Mostly Sunny
	Hi 80 °F	Hi 81 °F	Hi 77 °F	Hi 77 °F	Hi 78 °F	Hi 78 °F	Hi 76 °F

Tonight Mostly Clear then Patchy Fog	Monday Night Mostly Clear	Tuesday Night Showers And T-Storms Likely	Wednesday Night Partly Cloudy	Thursday Night Mostly Clear	Friday Night Chance Showers And T-Storms	Saturday Night Partly Cloudy
Lo 60 °F	Lo 63 °F	Lo 59 °F	Lo 55 °F	Lo 58 °F	Lo 60 °F	Lo 59 °F

Tonight	Patchy fog after 5am. Mostly clear, with a low around 60. North wind around 5 mph.
Monday	Patchy fog before 7am. Mostly sunny, with a high near 80. Northwest wind 0 to 5 mph.
Monday Night	Mostly clear, with a low around 63. West wind around 5 mph.
Tuesday	Rain showers likely between 1pm and 4pm, then showers and thunderstorms likely. Mostly sunny, with a high near 81. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Tuesday Night	Showers and thunderstorms likely. Mostly cloudy, with a low around 59. Northwest wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday	A slight chance of rain showers before 7am. Mostly sunny, with a high near 77. North wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Wednesday Night	Partly cloudy, with a low around 55. Northwest wind around 0 mph.
Thursday	Sunny, with a high near 77. Northwest wind 0 to 5 mph.
Thursday Night	Mostly clear, with a low around 58.
Friday	A slight chance of rain showers after 1pm. Sunny, with a high near 78. Chance of precipitation is 20%.
Friday Night	A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Saturday	A chance of rain showers before 1pm. Mostly sunny, with a high near 78. Chance of precipitation is 30%.
Saturday Night	Partly cloudy, with a low around 59.
Sunday	Mostly sunny, with a high near 76.

Forecast from NOAA-NWS for Cottage Grove, WI.