| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sat, May-23-2026 2:46pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
A chance of showers and thunderstorms before 1am, then isolated showers and thunderstorms between 1am and 3am, then patchy fog. Mostly cloudy, with a low around 55. South wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible. |
| Sunday |
Patchy fog before 9am. Mostly sunny, with a high near 78. Northwest wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible. |
| Sunday Night |
Mostly clear, with a low around 56. Southwest wind 0 to 5 mph. |
| Memorial Day |
Sunny, with a high near 86. South wind 5 to 10 mph. |
| Monday Night |
Mostly clear, with a low around 58. South wind 0 to 5 mph. |
| Tuesday |
Sunny, with a high near 86. South wind 0 to 5 mph. |
| Tuesday Night |
A slight chance of rain showers after 1am. Partly cloudy, with a low around 60. Southeast 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, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 84. East wind 0 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 showers and thunderstorms before 7pm. Mostly cloudy, with a low around 57. Chance of precipitation is 20%. |
| Thursday |
Mostly sunny, with a high near 81. |
| Thursday Night |
Partly cloudy, with a low around 53. |
| Friday |
Mostly sunny, with a high near 77. |
| Friday Night |
Partly cloudy, with a low around 51. |
| Saturday |
Mostly sunny, with a high near 76. |
Forecast from NOAA-NWS for Cottage Grove, WI.