| 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 3:32pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Mostly cloudy, with a high near 72. East wind around 5 mph. |
| Tonight |
A chance of rain showers between 11pm and midnight, then a slight chance of showers and thunderstorms between midnight and 1am, then a chance of showers and thunderstorms between 1am and 3am, then a chance of showers and thunderstorms. Cloudy, with a low around 59. East wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Thursday |
A chance of rain showers before 10am. Cloudy, with a high near 72. Northeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Thursday Night |
Mostly cloudy, with a low around 54. Northeast wind around 5 mph. |
| Friday |
A chance of rain showers after 1pm. Mostly cloudy, with a high near 70. East wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
A chance of rain showers before 7pm, then showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 62. Southeast wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible. |
| Saturday |
Showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 76. Southwest wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible. |
| Saturday Night |
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59. North wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible. |
| Sunday |
A chance of rain showers. Cloudy, with a high near 67. Chance of precipitation is 50%. |
| Sunday Night |
A chance of rain showers before 1am, 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 64. Chance of precipitation is 50%. |
| Monday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 40%. |
| Tuesday |
A chance of rain showers. Mostly cloudy, with a high near 67. Chance of precipitation is 40%. |
| Tuesday Night |
A slight chance of rain showers before 1am. Mostly cloudy, with a low around 53. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.