Cottage Grove, WI Weather

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Cottage Grove, WI

Updated: Sep-18-2025 1:24pm

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

Updated: Thu, Sep-18-2025 12:24pm CDT

Cottage Grove

This Afternoon Mostly Sunny	Friday Chance Showers And T-Storms	Saturday Showers And T-Storms Likely	Sunday Chance Showers And T-Storms	Monday Chance Showers And T-Storms	Tuesday Chance Rain Showers then Slight Chance Showers And T-Storms	Wednesday Slight Chance Rain Showers
Hi 85 °F	Hi 80 °F	Hi 77 °F	Hi 77 °F	Hi 77 °F	Hi 75 °F	Hi 74 °F

Tonight Mostly Cloudy then Slight Chance Showers And T-Storms	Friday Night Chance Showers And T-Storms	Saturday Night Chance Showers And T-Storms	Sunday Night Chance Showers And T-Storms	Monday Night Chance Showers And T-Storms	Tuesday Night Slight Chance Showers And T-Storms	Wednesday Night Slight Chance Rain Showers
Lo 62 °F	Lo 61 °F	Lo 61 °F	Lo 62 °F	Lo 59 °F	Lo 55 °F	Lo 54 °F

This Afternoon	Mostly sunny, with a high near 85. Southeast wind around 5 mph.
Tonight	Isolated rain showers between 2am and 4am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East wind around 5 mph. Chance of precipitation is 20%.
Friday	A chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 80. East wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday Night	A chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 61. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday	Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 77. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night	A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunday	A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 77. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night	A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. South wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Monday	A chance of showers and thunderstorms. Partly sunny, with a high near 77. Chance of precipitation is 40%.
Monday Night	A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Tuesday	A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 75. Chance of precipitation is 40%.
Tuesday Night	A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55. Chance of precipitation is 20%.
Wednesday	A slight chance of rain showers. Partly sunny, with a high near 74. Chance of precipitation is 20%.
Wednesday Night	A slight chance of rain showers. Partly cloudy, with a low around 54. Chance of precipitation is 20%.

Forecast from NOAA-NWS for Cottage Grove, WI.