| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Tue, Sep-22-2026 11:31am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
A chance of rain showers before 1pm. Partly sunny, with a high near 61. East wind 10 to 15 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Tonight |
Partly cloudy, with a low around 47. Northeast wind around 5 mph. |
| Wednesday |
Partly sunny, with a high near 65. Northeast wind 5 to 10 mph. |
| Wednesday Night |
Partly cloudy, with a low around 48. East wind 0 to 10 mph. |
| Thursday |
Partly sunny, with a high near 66. East wind 0 to 5 mph. |
| Thursday Night |
Mostly cloudy, with a low around 48. East wind 0 to 5 mph. |
| Friday |
Partly sunny, with a high near 67. East wind 0 to 5 mph. |
| Friday Night |
Mostly cloudy, with a low around 46. East wind 0 to 5 mph. |
| Saturday |
Partly sunny, with a high near 66. |
| Saturday Night |
A slight chance of rain showers after 7pm. Mostly cloudy, with a low around 49. Chance of precipitation is 20%. |
| Sunday |
A slight chance of rain showers before 7am. Mostly cloudy, with a high near 69. Chance of precipitation is 20%. |
| Sunday Night |
Mostly cloudy, with a low around 53. |
| Monday |
Partly sunny, with a high near 72. |
| Monday Night |
A slight chance of rain showers after 1am. Partly cloudy, with a low around 56. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.