Cottage Grove, WI Weather

41°F

Cottage Grove, WI

Updated: Feb-27-2026 11:12pm

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

Updated: Fri, Feb-27-2026 7:33pm CST

Cottage Grove

	Saturday Snow	Sunday Mostly Sunny	Monday Partly Sunny	Tuesday Chance Rain And Snow	Wednesday Chance Light Rain	Thursday Light Rain Likely	Friday Chance Light Rain
	Hi 28 °F	Hi 29 °F	Hi 40 °F	Hi 41 °F	Hi 47 °F	Hi 48 °F	Hi 51 °F

Tonight Partly Cloudy	Saturday Night Slight Chance Light Snow then Partly Cloudy	Sunday Night Mostly Cloudy	Monday Night Mostly Cloudy then Chance Light Snow	Tuesday Night Slight Chance Light Rain then Partly Cloudy	Wednesday Night Light Rain Likely	Thursday Night Chance Light Rain
Lo 24 °F	Lo 13 °F	Lo 13 °F	Lo 27 °F	Lo 27 °F	Lo 34 °F	Lo 35 °F

Tonight	Partly cloudy, with a low around 24. Northwest wind 5 to 15 mph, with gusts as high as 35 mph.
Saturday	Snow after 8am. Mostly cloudy, with a high near 28. North wind 5 to 10 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Saturday Night	A slight chance of snow before 7pm. Partly cloudy, with a low around 13. North wind around 5 mph. Chance of precipitation is 20%.
Sunday	Mostly sunny, with a high near 29. Northeast wind around 5 mph.
Sunday Night	Mostly cloudy, with a low around 13. East wind 0 to 5 mph.
Monday	Partly sunny, with a high near 40. Southeast wind 5 to 10 mph.
Monday Night	A chance of snow after midnight. Mostly cloudy, with a low around 27. Southeast wind around 5 mph. Chance of precipitation is 30%. New snow accumulation of less than half an inch possible.
Tuesday	A chance of rain and snow. Mostly cloudy, with a high near 41. East wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Tuesday Night	A slight chance of rain before midnight. Partly cloudy, with a low around 27. Chance of precipitation is 20%.
Wednesday	A chance of rain. Mostly sunny, with a high near 47. Chance of precipitation is 30%.
Wednesday Night	Rain likely. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Thursday	Rain likely. Cloudy, with a high near 48. Chance of precipitation is 60%.
Thursday Night	A chance of rain. Cloudy, with a low around 35. Chance of precipitation is 50%.
Friday	A chance of rain. Mostly cloudy, with a high near 51. Chance of precipitation is 40%.

Forecast from NOAA-NWS for Cottage Grove, WI.