Cottage Grove, WI Weather

88°F

Cottage Grove, WI

Updated: Jul-01-2026 11:40am

Navigation

External Links

Alerts

Dane

Style Options

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

Updated: Wed, Jul-01-2026 11:12am CDT

Cottage Grove

Today Sunny	Thursday Chance Showers And T-Storms then Slight Chance Showers And T-Storms	Friday Showers And T-Storms Likely	Independence Day Showers And T-Storms Likely	Sunday Showers And T-Storms Likely	Monday Mostly Sunny then Slight Chance Showers And T-Storms	Tuesday Mostly Sunny
Hi 92 °F	Hi 89 °F	Hi 89 °F	Hi 84 °F	Hi 85 °F	Hi 86 °F	Hi 87 °F

Tonight Chance Showers And T-Storms	Thursday Night Chance Showers And T-Storms then Showers And T-Storms Likely	Friday Night Showers And T-Storms Likely	Saturday Night Showers And T-Storms Likely	Sunday Night Chance Showers And T-Storms then Slight Chance Showers And T-Storms	Monday Night Slight Chance Showers And T-Storms then Partly Cloudy	Tuesday Night Partly Cloudy then Slight Chance Showers And T-Storms
Lo 75 °F	Lo 70 °F	Lo 70 °F	Lo 66 °F	Lo 64 °F	Lo 65 °F	Lo 66 °F

Extreme Heat Warning issued July 1 at 6:33AM CDT until July 1 at 7:00PM CDT

Today	Sunny, with a high near 92. Heat index values as high as 99. Southwest wind 10 to 15 mph.
Tonight	A chance of showers and thunderstorms between 11pm and 3am, then showers and thunderstorms likely. Partly cloudy, with a low around 75. Heat index values as high as 97. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Thursday	A chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms between 8am and 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 89. Heat index values as high as 97. Southwest wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Thursday Night	A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 70. Heat index values as high as 96. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Friday	Showers and thunderstorms likely. Partly sunny, with a high near 89. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday Night	Showers and thunderstorms likely. Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Independence Day	Showers and thunderstorms likely. Partly sunny, with a high near 84. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night	Showers and thunderstorms likely. Mostly cloudy, with a low around 66. East wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday	Showers and thunderstorms likely. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Sunday Night	A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 64. Chance of precipitation is 40%.
Monday	A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
Monday Night	A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 65. Chance of precipitation is 20%.
Tuesday	Mostly sunny, with a high near 87.
Tuesday Night	A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Chance of precipitation is 20%.

Forecast from NOAA-NWS for Cottage Grove, WI.