| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Thu, Sep-17-2026 6:36pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Mostly cloudy, with a low around 56. Northeast wind around 5 mph. |
| Friday |
A chance of rain showers after 1pm. Mostly cloudy, with a high near 69. East wind 5 to 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
Rain showers likely before 10pm, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 59. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible. |
| Saturday |
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 70. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible. |
| Saturday Night |
Showers and thunderstorms. Cloudy, with a low around 58. Northeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible. |
| Sunday |
A chance of rain showers. Mostly cloudy, with a high near 66. Northeast wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts between 1 and 2 inches possible. |
| Sunday Night |
A chance of rain showers. Mostly cloudy, with a low around 54. Northeast wind around 15 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Monday |
A chance of rain showers. Mostly cloudy, with a high near 62. Northeast wind around 15 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible. |
| Monday Night |
A chance of rain showers. Mostly cloudy, with a low around 49. Chance of precipitation is 40%. |
| Tuesday |
A chance of rain showers before 1pm. Partly sunny, with a high near 62. Chance of precipitation is 30%. |
| Tuesday Night |
Mostly cloudy, with a low around 48. |
| Wednesday |
Mostly sunny, with a high near 67. |
| Wednesday Night |
Partly cloudy, with a low around 51. |
| Thursday |
Mostly sunny, with a high near 69. |
Forecast from NOAA-NWS for Cottage Grove, WI.