| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Tue, Jun-09-2026 4:34am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Patchy fog and a slight chance of rain showers. Mostly cloudy, with a low around 67. Southwest wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Tuesday |
Patchy fog and a slight chance of rain showers before 8am, then a slight chance of showers and thunderstorms between 10am and noon. Mostly cloudy, with a high near 83. Northwest wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Tuesday Night |
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. South wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Wednesday |
A slight chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms between noon and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 89. Heat index values as high as 95. South wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday Night |
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 68. Southwest wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. |
| Thursday |
A chance of rain showers between 7am and 1pm, then showers and thunderstorms. Partly sunny. High near 85, with temperatures falling to around 80 in the afternoon. Southwest wind 5 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible. |
| Thursday Night |
Showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 58. West wind 5 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible. |
| Friday |
Sunny, with a high near 79. West wind 10 to 15 mph. |
| Friday Night |
Mostly clear, with a low around 59. |
| Saturday |
Sunny, with a high near 80. |
| Saturday Night |
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 56. Chance of precipitation is 30%. |
| Sunday |
A slight chance of rain showers. Mostly sunny, with a high near 74. Chance of precipitation is 20%. |
| Sunday Night |
A slight chance of rain showers. Partly cloudy, with a low around 53. Chance of precipitation is 20%. |
| Monday |
A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 74. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Cottage Grove, WI.





