Cottage Grove, WI Weather

64°F

Cottage Grove, WI

Updated: Jul-24-2026 12:12am

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

Updated: Thu, Jul-23-2026 11:52pm CDT

Cottage Grove

	Friday Mostly Sunny	Saturday Partly Sunny	Sunday Slight Chance Showers And T-Storms	Monday Chance Showers And T-Storms	Tuesday Mostly Sunny	Wednesday Sunny then Slight Chance Showers And T-Storms	Thursday Mostly Sunny
	Hi 79 °F	Hi 85 °F	Hi 92 °F	Hi 92 °F	Hi 87 °F	Hi 86 °F	Hi 86 °F

Overnight Mostly Cloudy	Friday Night Partly Cloudy	Saturday Night Partly Cloudy then Slight Chance Showers And T-Storms	Sunday Night Partly Cloudy then Chance Showers And T-Storms	Monday Night Slight Chance Showers And T-Storms then Mostly Clear	Tuesday Night Mostly Clear	Wednesday Night Slight Chance Showers And T-Storms
Lo 56 °F	Lo 60 °F	Lo 67 °F	Lo 73 °F	Lo 67 °F	Lo 63 °F	Lo 63 °F

Overnight	Mostly cloudy, with a low around 56. Southwest wind around 0 mph.
Friday	Mostly sunny, with a high near 79. South wind 0 to 5 mph.
Friday Night	Partly cloudy, with a low around 60. South wind around 5 mph.
Saturday	Partly sunny, with a high near 85. Southwest wind 5 to 10 mph.
Saturday Night	A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Southwest wind around 5 mph. Chance of precipitation is 20%.
Sunday	A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 92. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday Night	A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
Monday	A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 92. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Monday Night	A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 67. Chance of precipitation is 20%.
Tuesday	Mostly sunny, with a high near 87.
Tuesday Night	Mostly clear, with a low around 63.
Wednesday	A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 86. Chance of precipitation is 20%.
Wednesday Night	A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Thursday	Mostly sunny, with a high near 86.

Forecast from NOAA-NWS for Cottage Grove, WI.