| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sun, May-24-2026 3:52pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Mostly clear, with a low around 56. South wind 0 to 5 mph. |
| Memorial Day |
A slight chance of rain showers between 10am and 11am. Mostly sunny, with a high near 84. Southwest wind 5 to 15 mph. Chance of precipitation is 20%. |
| Monday Night |
Mostly clear, with a low around 59. Southwest wind 5 to 10 mph. |
| Tuesday |
Sunny, with a high near 86. Southwest wind around 5 mph. |
| Tuesday Night |
Mostly clear, with a low around 60. Southwest wind 0 to 5 mph. |
| Wednesday |
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. North wind 0 to 5 mph. Chance of precipitation is 30%. |
| Wednesday Night |
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 56. Northeast wind around 5 mph. Chance of precipitation is 30%. |
| Thursday |
Sunny, with a high near 80. East wind 5 to 10 mph. |
| Thursday Night |
Mostly clear, with a low around 54. |
| Friday |
Mostly sunny, with a high near 80. |
| Friday Night |
Partly cloudy, with a low around 54. |
| Saturday |
Mostly sunny, with a high near 77. |
| Saturday Night |
Partly cloudy, with a low around 53. |
| Sunday |
Mostly sunny, with a high near 78. |
Forecast from NOAA-NWS for Cottage Grove, WI.