| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sun, Oct-18-2026 1:41pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Sunny, with a high near 62. Southwest wind around 15 mph, with gusts as high as 30 mph. |
| Tonight |
Clear, with a low around 41. Southwest wind 5 to 10 mph. |
| Monday |
Sunny, with a high near 66. Southwest wind around 5 mph. |
| Monday Night |
Partly cloudy, with a low around 40. Southeast wind 0 to 5 mph. |
| Tuesday |
Sunny, with a high near 67. Southeast wind 0 to 5 mph. |
| Tuesday Night |
Mostly clear, with a low around 44. Southeast wind 0 to 5 mph. |
| Wednesday |
Sunny, with a high near 69. South wind 0 to 5 mph. |
| Wednesday Night |
Mostly clear, with a low around 48. West wind 0 to 5 mph. |
| Thursday |
Sunny, with a high near 70. |
| Thursday Night |
Mostly clear, with a low around 48. |
| Friday |
Sunny, with a high near 68. |
| Friday Night |
Partly cloudy, with a low around 49. |
| Saturday |
Mostly sunny, with a high near 69. |
| Saturday Night |
Mostly cloudy, with a low around 52. |
Forecast from NOAA-NWS for Cottage Grove, WI.