Cottage Grove, WI Weather

58°F

Cottage Grove, WI

Updated: May-04-2026 10:42pm

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

Updated: Mon, May-04-2026 8:36pm CDT

Cottage Grove

	Tuesday Partly Sunny	Wednesday Areas Of Frost then Partly Sunny	Thursday Areas Of Frost then Slight Chance Showers And T-Storms	Friday Mostly Sunny then Slight Chance Rain Showers	Saturday Sunny	Sunday Slight Chance Rain Showers then Slight Chance Showers And T-Storms	Monday Mostly Sunny
	Hi 57 °F	Hi 55 °F	Hi 58 °F	Hi 63 °F	Hi 67 °F	Hi 65 °F	Hi 65 °F

Tonight Mostly Cloudy then Scattered Rain Showers	Tuesday Night Mostly Cloudy then Areas Of Frost	Wednesday Night Partly Cloudy then Areas Of Frost	Thursday Night Slight Chance Showers And T-Storms then Partly Cloudy	Friday Night Slight Chance Rain Showers then Partly Cloudy	Saturday Night Partly Cloudy	Sunday Night Slight Chance Showers And T-Storms
Lo 42 °F	Lo 36 °F	Lo 34 °F	Lo 40 °F	Lo 40 °F	Lo 45 °F	Lo 42 °F

Tonight	Scattered rain showers between 1am and 3am. Mostly cloudy, with a low around 42. Northwest wind 5 to 10 mph, with gusts as high as 30 mph.
Tuesday	Partly sunny, with a high near 57. Northwest wind 5 to 10 mph.
Tuesday Night	Areas of frost after 5am. Mostly cloudy, with a low around 36. Northwest wind 5 to 10 mph.
Wednesday	Areas of frost before 7am. Partly sunny, with a high near 55. Northwest wind 5 to 10 mph.
Wednesday Night	Areas of frost after 2am. Partly cloudy, with a low around 34. Northwest wind 0 to 5 mph.
Thursday	Areas of frost before 8am, then a slight chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 58. West wind 0 to 10 mph. Chance of precipitation is 20%.
Thursday Night	A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 40. Southwest wind around 5 mph. Chance of precipitation is 20%.
Friday	A slight chance of rain showers after 1pm. Mostly sunny, with a high near 63. West wind 5 to 10 mph. Chance of precipitation is 20%.
Friday Night	A slight chance of rain showers before 7pm. Partly cloudy, with a low around 40. Chance of precipitation is 20%.
Saturday	Sunny, with a high near 67.
Saturday Night	Partly cloudy, with a low around 45.
Sunday	A slight chance of rain showers between 7am and 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 65. Chance of precipitation is 20%.
Sunday Night	A slight chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 20%.
Monday	Mostly sunny, with a high near 65.

Forecast from NOAA-NWS for Cottage Grove, WI.