Cottage Grove, WI Weather

69°F

Cottage Grove, WI

Updated: Aug-27-2026 9:22pm

Navigation

External Links

Alerts

Style Options

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

Updated: Thu, Aug-27-2026 7:56pm CDT

Cottage Grove

	Friday Sunny	Saturday Mostly Cloudy then Slight Chance Rain Showers	Sunday Showers And T-Storms Likely then Slight Chance Showers And T-Storms	Monday Chance Showers And T-Storms then Slight 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 Chance Showers And T-Storms then Slight Chance Showers And T-Storms
	Hi 82 °F	Hi 79 °F	Hi 86 °F	Hi 87 °F	Hi 86 °F	Hi 86 °F	Hi 85 °F

Tonight Mostly Clear then Patchy Fog	Friday Night Partly Cloudy	Saturday Night Showers And T-Storms Likely	Sunday Night Slight Chance Showers And T-Storms	Monday Night Chance Showers And T-Storms	Tuesday Night Slight Chance Showers And T-Storms	Wednesday Night Slight Chance Showers And T-Storms
Lo 57 °F	Lo 62 °F	Lo 66 °F	Lo 71 °F	Lo 71 °F	Lo 68 °F	Lo 67 °F

Tonight	Patchy fog after 5am. Mostly clear, with a low around 57. South wind 0 to 5 mph.
Friday	Sunny, with a high near 82. Southwest wind 0 to 5 mph.
Friday Night	Partly cloudy, with a low around 62. Southwest wind around 5 mph.
Saturday	A slight chance of rain showers after 1pm. Mostly cloudy, with a high near 79. South wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday Night	A slight chance of rain showers before 7pm, then showers and thunderstorms likely. 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	Showers and thunderstorms likely before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 86. South wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Sunday Night	A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Monday	A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 87. Southwest wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Monday Night	A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Tuesday	A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Tuesday Night	A slight chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68. 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 between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Thursday	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 85. Chance of precipitation is 30%.

Forecast from NOAA-NWS for Cottage Grove, WI.