Cottage Grove, WI Weather

60°F

Cottage Grove, WI

Updated: Aug-28-2026 5:42am

Navigation

External Links

Alerts

Style Options

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

Updated: Fri, Aug-28-2026 2:36am CDT

Cottage Grove

	Friday Sunny	Saturday Rain Showers Likely	Sunday Chance Showers And T-Storms	Monday Chance Showers And T-Storms	Tuesday Chance Showers And T-Storms	Wednesday Chance Showers And T-Storms then Slight Chance Showers And T-Storms	Thursday Slight Chance Showers And T-Storms
	Hi 82 °F	Hi 78 °F	Hi 85 °F	Hi 87 °F	Hi 87 °F	Hi 86 °F	Hi 85 °F

Overnight Patchy Fog	Friday Night Partly Cloudy	Saturday Night Rain Showers Likely	Sunday Night Chance Showers And T-Storms	Monday Night Mostly Cloudy then Chance Showers And T-Storms	Tuesday Night Slight Chance Showers And T-Storms then Chance Showers And T-Storms	Wednesday Night Partly Cloudy then Slight Chance Showers And T-Storms
Lo 57 °F	Lo 60 °F	Lo 66 °F	Lo 69 °F	Lo 70 °F	Lo 67 °F	Lo 67 °F

Overnight	Patchy fog after 5am. Mostly clear, with a low around 57. Southwest wind around 0 mph.
Friday	Sunny, with a high near 82. Southwest wind 0 to 5 mph.
Friday Night	Partly cloudy, with a low around 60. Southwest wind around 5 mph.
Saturday	Rain showers likely after 11am. Mostly cloudy, with a high near 78. South wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Saturday Night	Rain showers likely before 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Sunday	A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 85. South wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Sunday Night	A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Monday	A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87. Southwest wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Monday Night	A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Tuesday	A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Tuesday Night	A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 40%.
Wednesday	A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Wednesday Night	A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Chance of precipitation is 20%.
Thursday	A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.

Forecast from NOAA-NWS for Cottage Grove, WI.