| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Mon, Oct-12-2026 4:33am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly cloudy, with a low around 63. South wind around 5 mph. |
| Columbus Day |
Mostly sunny, with a high near 86. Southwest wind 5 to 15 mph. |
| Monday Night |
Mostly clear, with a low around 66. Southwest wind 10 to 15 mph. |
| Tuesday |
Sunny, with a high near 76. West wind 5 to 15 mph. |
| Tuesday Night |
A chance of rain showers after 7pm. Partly cloudy, with a low around 56. North 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 rain showers before 7am. Mostly cloudy, with a high near 67. Northeast wind 0 to 10 mph. Chance of precipitation is 20%. |
| Wednesday Night |
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 49. Northeast wind around 5 mph. Chance of precipitation is 20%. |
| Thursday |
Rain showers likely. Mostly cloudy, with a high near 64. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. |
| Thursday Night |
A chance of rain showers before 1am. Mostly cloudy, with a low around 45. Chance of precipitation is 50%. |
| Friday |
Partly sunny, with a high near 55. |
| Friday Night |
Partly cloudy, with a low around 33. |
| Saturday |
Sunny, with a high near 55. |
| Saturday Night |
Clear, with a low around 37. |
| Sunday |
Sunny, with a high near 61. |
Forecast from NOAA-NWS for Cottage Grove, WI.