| 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 7:33am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Today |
Mostly sunny, with a high near 68. Northwest wind 0 to 10 mph. |
| Tonight |
Partly cloudy, with a low around 47. Southwest wind 0 to 5 mph. |
| Friday |
A chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Partly sunny, with a high near 70. Southeast wind 0 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Friday Night |
Mostly clear, with a low around 58. South wind around 10 mph. New rainfall amounts between a tenth and quarter of an inch possible. |
| Saturday |
Sunny, with a high near 80. South wind 10 to 15 mph. |
| Saturday Night |
Partly cloudy, with a low around 58. South wind 5 to 10 mph. |
| Sunday |
Mostly 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 |
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 75. Chance of precipitation is 20%. |
| Monday Night |
A chance of rain showers. Mostly cloudy, with a low around 51. Chance of precipitation is 30%. |
| Tuesday |
A slight chance of rain showers before 7am. Mostly sunny, with a high near 61. Chance of precipitation is 20%. |
| Tuesday Night |
Partly cloudy, with a low around 42. |
| Wednesday |
Mostly sunny, with a high near 61. |
| Wednesday Night |
A chance of rain showers after 7pm. Partly cloudy, with a low around 46. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Cottage Grove, WI.