Cottage Grove, WI Weather

79°F

Cottage Grove, WI

Updated: Jul-15-2026 10:55pm

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

Updated: Wed, Jul-15-2026 8:36pm CDT

Cottage Grove

	Thursday Areas Of Smoke then Scattered Showers And T-Storms	Friday Areas Of Smoke then Chance Showers And T-Storms	Saturday Sunny	Sunday Sunny	Monday Chance Showers And T-Storms	Tuesday Sunny	Wednesday Mostly Sunny
	Hi 89 °F	Hi 89 °F	Hi 89 °F	Hi 85 °F	Hi 87 °F	Hi 82 °F	Hi 79 °F

Tonight Mostly Cloudy then Patchy Smoke	Thursday Night Isolated Showers And T-Storms then Areas Of Smoke	Friday Night Chance Showers And T-Storms then Mostly Clear	Saturday Night Mostly Clear	Sunday Night Partly Cloudy then Chance Rain Showers	Monday Night Chance Showers And T-Storms	Tuesday Night Mostly Clear
Lo 70 °F	Lo 67 °F	Lo 71 °F	Lo 63 °F	Lo 65 °F	Lo 65 °F	Lo 58 °F

Air Quality Alert issued July 14 at 11:40AM CDT

Tonight	Patchy smoke after 4am. Mostly cloudy, with a low around 70. East wind 0 to 5 mph.
Thursday	Areas of smoke before 10am, then scattered showers and thunderstorms. Partly sunny, with a high near 89. Southeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Thursday Night	Isolated showers and thunderstorms before 9pm, then areas of smoke and isolated showers and thunderstorms. Partly cloudy, with a low around 67. Southeast wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Friday	Areas of smoke before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 89. South wind 0 to 5 mph. Chance of precipitation is 30%.
Friday Night	A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 71. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday	Sunny, with a high near 89. Northwest wind 10 to 15 mph.
Saturday Night	Mostly clear, with a low around 63. Northeast wind 0 to 10 mph.
Sunday	Sunny, with a high near 85. East wind 0 to 5 mph.
Sunday Night	A chance of rain showers after 1am. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Monday	A chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
Monday Night	A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 65. Chance of precipitation is 40%.
Tuesday	Sunny, with a high near 82.
Tuesday Night	Mostly clear, with a low around 58.
Wednesday	Mostly sunny, with a high near 79.

Forecast from NOAA-NWS for Cottage Grove, WI.