| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Mon, May-25-2026 10:33am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Memorial Day |
Mostly sunny, with a high near 82. Southwest wind 10 to 15 mph. |
| Tonight |
Clear, with a low around 59. Southwest wind 5 to 10 mph. |
| Tuesday |
Sunny, with a high near 87. Southwest wind 5 to 10 mph. |
| Tuesday Night |
A slight chance of rain showers between 1am and 4am. Partly cloudy, with a low around 60. West wind 0 to 5 mph. Chance of precipitation is 20%. |
| Wednesday |
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 81. North wind 0 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Wednesday Night |
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 52. Northeast wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Thursday |
Sunny, with a high near 82. Northeast wind 5 to 10 mph. |
| Thursday Night |
Partly cloudy, with a low around 52. East wind 0 to 10 mph. |
| Friday |
Mostly sunny, with a high near 79. |
| Friday Night |
Partly cloudy, with a low around 53. |
| Saturday |
Mostly sunny, with a high near 76. |
| Saturday Night |
Partly cloudy, with a low around 51. |
| Sunday |
Mostly sunny, with a high near 77. |
| Sunday Night |
Partly cloudy, with a low around 52. |
Forecast from NOAA-NWS for Cottage Grove, WI.