Cottage Grove, WI Weather

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Cottage Grove, WI

Updated: Jul-04-2026 4:08am

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

Updated: Sat, Jul-04-2026 2:31am CDT

Cottage Grove

	Independence Day Slight Chance Showers And T-Storms then Chance Showers And T-Storms	Sunday Patchy Fog	Monday Mostly Sunny	Tuesday Sunny	Wednesday Mostly Sunny then Slight Chance Showers And T-Storms	Thursday Chance Rain Showers then Chance Showers And T-Storms	Friday Chance Rain Showers then Slight Chance Showers And T-Storms
	Hi 83 °F	Hi 81 °F	Hi 82 °F	Hi 85 °F	Hi 86 °F	Hi 83 °F	Hi 81 °F

Overnight Patchy Fog	Saturday Night Chance Showers And T-Storms	Sunday Night Slight Chance Showers And T-Storms then Partly Cloudy	Monday Night Mostly Clear	Tuesday Night Mostly Clear	Wednesday Night Chance Showers And T-Storms	Thursday Night Chance Showers And T-Storms
Lo 68 °F	Lo 63 °F	Lo 60 °F	Lo 61 °F	Lo 65 °F	Lo 66 °F	Lo 63 °F

Overnight	Patchy fog and a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Southwest wind around 0 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Independence Day	Patchy fog before 7am, then a slight chance of rain showers between 9am and 10am, then a slight chance of showers and thunderstorms between 10am and 11am, then a chance of showers and thunderstorms between 11am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. North wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday Night	A chance of showers and thunderstorms before 2am, then patchy fog and a slight chance of rain showers between 2am and 4am, then patchy fog and a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Northeast wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunday	Patchy fog and a slight chance of showers and thunderstorms. Mostly sunny, with a high near 81. Northeast wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Sunday Night	A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 60. Northeast wind 0 to 5 mph. Chance of precipitation is 20%.
Monday	Mostly sunny, with a high near 82. Northeast wind around 5 mph.
Monday Night	Mostly clear, with a low around 61. Northeast wind 0 to 5 mph.
Tuesday	Sunny, with a high near 85. Northwest wind 0 to 5 mph.
Tuesday Night	Mostly clear, with a low around 65.
Wednesday	A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
Wednesday Night	A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 40%.
Thursday	A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Thursday Night	A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 40%.
Friday	A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 81. Chance of precipitation is 40%.

Forecast from NOAA-NWS for Cottage Grove, WI.