| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Mon, Sep-07-2026 2:36pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Labor Day |
Mostly sunny, with a high near 80. Southeast wind 5 to 10 mph. |
| Tonight |
Mostly cloudy, with a low around 59. Southeast wind around 5 mph. |
| Tuesday |
A chance of rain showers after 1pm. Partly sunny, with a high near 82. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Tuesday Night |
A chance of rain showers before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 68. Southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible. |
| Wednesday |
A chance of showers and thunderstorms before noon. Mostly cloudy, with a high near 81. West wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible. |
| Wednesday Night |
Mostly clear, with a low around 57. West wind 5 to 10 mph. |
| Thursday |
Sunny, with a high near 77. Northwest wind 0 to 5 mph. |
| Thursday Night |
Clear, with a low around 54. Northwest wind around 0 mph. |
| Friday |
Sunny, with a high near 78. |
| Friday Night |
A chance of rain showers between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 40%. |
| Saturday |
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 80. Chance of precipitation is 40%. |
| Saturday Night |
A slight chance of rain showers between 7pm and 1am. Partly cloudy, with a low around 57. Chance of precipitation is 20%. |
| Sunday |
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 76. Chance of precipitation is 30%. |
| Sunday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 50%. |
Forecast from NOAA-NWS for Cottage Grove, WI.