Cottage Grove, WI Weather

44°F

Cottage Grove, WI

Updated: Oct-20-2026 5:06am

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

Updated: Tue, Oct-20-2026 3:51am CDT

Cottage Grove

	Tuesday Sunny	Wednesday Sunny	Thursday Sunny	Friday Mostly Sunny	Saturday Partly Sunny	Sunday Partly Sunny	Monday Mostly Sunny then Slight Chance Rain Showers
	Hi 68 °F	Hi 69 °F	Hi 69 °F	Hi 68 °F	Hi 68 °F	Hi 68 °F	Hi 62 °F

Overnight Mostly Clear	Tuesday Night Mostly Clear	Wednesday Night Partly Cloudy	Thursday Night Mostly Clear	Friday Night Partly Cloudy	Saturday Night Mostly Cloudy	Sunday Night Partly Cloudy
Lo 41 °F	Lo 41 °F	Lo 45 °F	Lo 44 °F	Lo 49 °F	Lo 51 °F	Lo 46 °F

Overnight	Mostly clear, with a low around 41. East wind around 0 mph.
Tuesday	Sunny, with a high near 68. Southeast wind 0 to 5 mph.
Tuesday Night	Mostly clear, with a low around 41. South wind 0 to 5 mph.
Wednesday	Sunny, with a high near 69. Southwest wind 0 to 5 mph.
Wednesday Night	Partly cloudy, with a low around 45. West wind around 0 mph.
Thursday	Sunny, with a high near 69. East wind 0 to 5 mph.
Thursday Night	Mostly clear, with a low around 44. Southeast wind around 0 mph.
Friday	Mostly sunny, with a high near 68. Southeast wind 0 to 10 mph.
Friday Night	Partly cloudy, with a low around 49.
Saturday	Partly sunny, with a high near 68.
Saturday Night	Mostly cloudy, with a low around 51.
Sunday	Partly sunny, with a high near 68.
Sunday Night	Partly cloudy, with a low around 46.
Monday	A slight chance of rain showers after 1pm. Mostly sunny, with a high near 62. Chance of precipitation is 20%.

Forecast from NOAA-NWS for Cottage Grove, WI.