| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sun, Oct-11-2026 2:36am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Clear, with a low around 55. South wind around 10 mph. |
| Sunday |
Sunny, with a high near 80. South wind 5 to 10 mph. |
| Sunday Night |
Partly cloudy, with a low around 61. South wind 5 to 10 mph. |
| Columbus Day |
Mostly sunny, with a high near 85. Southwest wind 10 to 15 mph. |
| Monday Night |
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 65. Southwest wind 5 to 10 mph. Chance of precipitation is 20%. |
| Tuesday |
Mostly sunny, with a high near 74. West wind 5 to 10 mph. |
| Tuesday Night |
A slight chance of rain showers after 7pm. Partly cloudy, with a low around 53. North wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Wednesday |
A slight chance of rain showers before 7am. Partly sunny, with a high near 67. Northeast wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Wednesday Night |
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 49. Chance of precipitation is 20%. |
| Thursday |
A chance of rain showers. Mostly cloudy, with a high near 65. Chance of precipitation is 50%. |
| Thursday Night |
A chance of rain showers. Mostly cloudy, with a low around 45. Chance of precipitation is 50%. |
| Friday |
A chance of rain showers before 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 40%. |
| Friday Night |
Mostly cloudy, with a low around 36. |
| Saturday |
Mostly sunny, with a high near 54. |
Forecast from NOAA-NWS for Cottage Grove, WI.