Cottage Grove, WI Weather

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Cottage Grove, WI

Updated: Jul-27-2026 11:03pm

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

Updated: Mon, Jul-27-2026 10:33pm CDT

Cottage Grove

	Tuesday Mostly Sunny	Wednesday Sunny	Thursday Mostly Sunny	Friday Slight Chance Showers And T-Storms	Saturday Chance Showers And T-Storms	Sunday Mostly Sunny	Monday Sunny
	Hi 83 °F	Hi 85 °F	Hi 88 °F	Hi 83 °F	Hi 81 °F	Hi 83 °F	Hi 85 °F

Tonight Mostly Cloudy	Tuesday Night Mostly Clear	Wednesday Night Mostly Clear	Thursday Night Partly Cloudy then Slight Chance Showers And T-Storms	Friday Night Chance Showers And T-Storms	Saturday Night Chance Showers And T-Storms then Slight Chance Showers And T-Storms	Sunday Night Mostly Clear
Lo 65 °F	Lo 60 °F	Lo 64 °F	Lo 66 °F	Lo 65 °F	Lo 62 °F	Lo 60 °F

Tonight	Mostly cloudy, with a low around 65. North wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible.
Tuesday	Mostly sunny, with a high near 83. Northeast wind 5 to 10 mph.
Tuesday Night	Mostly clear, with a low around 60. Northeast wind 0 to 5 mph.
Wednesday	Sunny, with a high near 85. North wind 0 to 5 mph.
Wednesday Night	Mostly clear, with a low around 64. Southwest wind around 0 mph.
Thursday	Mostly sunny, with a high near 88. Southwest wind 0 to 5 mph.
Thursday Night	A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Southwest wind 0 to 5 mph. Chance of precipitation is 20%.
Friday	A slight chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Southwest wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Friday Night	A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Saturday	A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Saturday Night	A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 62. Chance of precipitation is 40%.
Sunday	Mostly sunny, with a high near 83.
Sunday Night	Mostly clear, with a low around 60.
Monday	Sunny, with a high near 85.

Forecast from NOAA-NWS for Cottage Grove, WI.