Cottage Grove, WI Weather

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Cottage Grove, WI

Updated: May-26-2026 7:20pm

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

Updated: Tue, May-26-2026 6:37pm CDT

Cottage Grove

	Wednesday Partly Sunny then Chance Showers And T-Storms	Thursday Sunny	Friday Sunny	Saturday Sunny	Sunday Sunny	Monday Sunny	Tuesday Sunny
	Hi 86 °F	Hi 78 °F	Hi 82 °F	Hi 82 °F	Hi 80 °F	Hi 80 °F	Hi 81 °F

Tonight Mostly Cloudy	Wednesday Night Slight Chance Showers And T-Storms then Partly Cloudy	Thursday Night Clear	Friday Night Mostly Clear	Saturday Night Mostly Clear	Sunday Night Mostly Clear	Monday Night Mostly Clear
Lo 60 °F	Lo 53 °F	Lo 48 °F	Lo 55 °F	Lo 52 °F	Lo 52 °F	Lo 52 °F

Tonight	Mostly cloudy, with a low around 60. Southeast wind 0 to 5 mph.
Wednesday	A chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 86. Northeast wind 0 to 5 mph. Chance of precipitation is 30%.
Wednesday Night	A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 53. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Thursday	Sunny, with a high near 78. Northeast wind around 10 mph.
Thursday Night	Clear, with a low around 48. East wind 0 to 10 mph.
Friday	Sunny, with a high near 82. West wind around 0 mph.
Friday Night	Mostly clear, with a low around 55. Northeast wind around 0 mph.
Saturday	Sunny, with a high near 82. East wind 0 to 10 mph.
Saturday Night	Mostly clear, with a low around 52.
Sunday	Sunny, with a high near 80.
Sunday Night	Mostly clear, with a low around 52.
Monday	Sunny, with a high near 80.
Monday Night	Mostly clear, with a low around 52.
Tuesday	Sunny, with a high near 81.

Forecast from NOAA-NWS for Cottage Grove, WI.