| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Wed, Sep-16-2026 4:33am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly cloudy, with a low around 56. Northeast wind around 5 mph. |
| Wednesday |
A slight chance of rain showers after 5pm. Mostly cloudy, with a high near 71. Northeast wind 5 to 10 mph. |
| Wednesday Night |
A chance of rain showers before 5am. Mostly cloudy, with a low around 60. East wind 0 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Thursday |
A slight chance of rain showers before 10am. Mostly cloudy, with a high near 75. Northeast wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Thursday Night |
Mostly cloudy, with a low around 57. Northeast wind 0 to 5 mph. |
| Friday |
Rain showers likely after 7am. Mostly cloudy, with a high near 73. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Friday Night |
Rain showers likely before 7pm, then showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 59. Southeast 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 75. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible. |
| Saturday Night |
Showers and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%. |
| Sunday |
A chance of showers and thunderstorms. Mostly cloudy, with a high near 69. Chance of precipitation is 40%. |
| Sunday Night |
A chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 50%. |
| Monday |
A chance of showers and thunderstorms. Mostly cloudy, with a high near 69. Chance of precipitation is 50%. |
| Monday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. Chance of precipitation is 30%. |
| Tuesday |
A chance of rain showers. Mostly cloudy, with a high near 72. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Cottage Grove, WI.