| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sun, Sep-13-2026 5:07am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Today |
A chance of rain showers between 10am and 3pm. Partly sunny, with a high near 66. Northwest wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Tonight |
Mostly clear, with a low around 45. Northwest wind 0 to 5 mph. |
| Monday |
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 71. Southeast wind 0 to 15 mph. Chance of precipitation is 20%. |
| Monday Night |
A slight chance of rain showers before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible. |
| Tuesday |
Showers and thunderstorms before 1pm. Mostly cloudy, with a high near 77. Southwest wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible. |
| Tuesday Night |
Mostly cloudy, with a low around 54. North wind 0 to 5 mph. New rainfall amounts less than a tenth of an inch possible. |
| Wednesday |
A chance of rain showers after 7am. Cloudy, with a high near 71. Northeast wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday Night |
A chance of rain showers before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 58. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible. |
| Thursday |
Showers and thunderstorms. Mostly cloudy, with a high near 75. Chance of precipitation is 80%. |
| Thursday Night |
A chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 40%. |
| Friday |
A chance of showers and thunderstorms. Partly sunny, with a high near 73. Chance of precipitation is 50%. |
| Friday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 50%. |
| Saturday |
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 73. Chance of precipitation is 40%. |
| Saturday Night |
Partly cloudy, with a low around 52. |
Forecast from NOAA-NWS for Cottage Grove, WI.