| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Tue, Oct-06-2026 2:36am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 47. South wind around 5 mph. |
| Tuesday |
Sunny, with a high near 72. South wind 5 to 15 mph, with gusts as high as 30 mph. |
| Tuesday Night |
Mostly clear, with a low around 52. West wind 5 to 15 mph. |
| Wednesday |
Sunny, with a high near 72. Northwest wind 5 to 15 mph. |
| Wednesday Night |
Partly cloudy, with a low around 47. West wind 5 to 10 mph. |
| Thursday |
Mostly sunny, with a high near 66. Northwest wind 5 to 10 mph. |
| Thursday Night |
Partly cloudy, with a low around 43. West wind 0 to 5 mph. |
| Friday |
Sunny, with a high near 68. Southwest wind 0 to 5 mph. |
| Friday Night |
Mostly clear, with a low around 51. |
| Saturday |
Sunny, with a high near 75. |
| Saturday Night |
Mostly clear, with a low around 58. |
| Sunday |
Mostly sunny, with a high near 77. |
| Sunday Night |
Partly cloudy, with a low around 53. |
| Columbus Day |
A chance of rain showers after 7am. Mostly sunny, with a high near 69. Chance of precipitation is 40%. |
Forecast from NOAA-NWS for Cottage Grove, WI.