| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Thu, Oct-08-2026 8:36pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Mostly cloudy, with a low around 47. Wind around 0 mph. |
| Friday |
A chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 70. Southeast wind 0 to 10 mph. Chance of precipitation is 30%. |
| Friday Night |
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 56. Southeast wind 5 to 10 mph. Chance of precipitation is 20%. |
| Saturday |
Sunny, with a high near 81. South wind 10 to 15 mph, with gusts as high as 30 mph. |
| Saturday Night |
Partly cloudy, with a low around 57. South wind 5 to 15 mph. |
| Sunday |
Sunny, with a high near 75. South wind around 5 mph. |
| Sunday Night |
Mostly clear, with a low around 56. South wind 0 to 5 mph. |
| Columbus Day |
Mostly sunny, with a high near 77. Southwest wind 5 to 10 mph. |
| Monday Night |
A chance of rain showers after 7pm. Partly cloudy, with a low around 55. Chance of precipitation is 30%. |
| Tuesday |
A slight chance of rain showers before 7am. Mostly sunny, with a high near 66. Chance of precipitation is 20%. |
| Tuesday Night |
Partly cloudy, with a low around 46. |
| Wednesday |
A chance of rain showers after 7am. Partly sunny, with a high near 65. Chance of precipitation is 40%. |
| Wednesday Night |
A chance of rain showers. Mostly cloudy, with a low around 51. Chance of precipitation is 40%. |
| Thursday |
A chance of rain showers. Partly sunny, with a high near 67. Chance of precipitation is 50%. |
Forecast from NOAA-NWS for Cottage Grove, WI.