| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Wed, Oct-07-2026 6:36pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Mostly clear, with a low around 48. Northwest wind 0 to 5 mph. |
| Thursday |
Mostly sunny, with a high near 68. Northwest wind 5 to 10 mph. |
| Thursday Night |
Partly cloudy, with a low around 46. West wind 0 to 5 mph. |
| Friday |
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 71. South wind 0 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
A slight chance of rain showers before 7pm. Mostly clear, with a low around 58. South wind around 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday |
Sunny, with a high near 80. South wind 10 to 15 mph, with gusts as high as 25 mph. |
| Saturday Night |
Partly cloudy, with a low around 56. South wind 5 to 10 mph. |
| Sunday |
Mostly sunny, with a high near 76. South wind 5 to 10 mph. |
| Sunday Night |
Mostly clear, with a low around 56. |
| Columbus Day |
A chance of rain showers after 1pm. Mostly sunny, with a high near 72. Chance of precipitation is 30%. |
| Monday Night |
A chance of rain showers before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 45. Chance of precipitation is 30%. |
| Tuesday |
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 60. Chance of precipitation is 30%. |
| Tuesday Night |
Partly cloudy, with a low around 40. |
| Wednesday |
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 59. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.