| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sat, Sep-12-2026 3:32am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly cloudy, with a low around 62. South wind 5 to 10 mph. |
| Saturday |
Mostly sunny, with a high near 81. West wind 10 to 15 mph. |
| Saturday Night |
Mostly clear, with a low around 54. Northwest wind around 5 mph. |
| Sunday |
A chance of rain showers between 11am and 3pm. Partly sunny, with a high near 67. Northwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Sunday Night |
Mostly clear, with a low around 45. North wind 0 to 5 mph. New rainfall amounts less than a tenth of an inch possible. |
| Monday |
A chance of rain showers after 1pm. Partly sunny, with a high near 69. Southeast wind 0 to 15 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Monday Night |
A chance of rain showers before 10pm, then showers and thunderstorms. Mostly cloudy, with a low around 61. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible. |
| Tuesday |
Showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Cloudy, with a high near 76. West wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible. |
| Tuesday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 40%. |
| Wednesday |
A chance of rain showers before 7am, then showers and thunderstorms likely. Mostly cloudy, with a high near 71. Chance of precipitation is 60%. |
| Wednesday Night |
Rain showers likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%. |
| Thursday |
A chance of rain showers before 1pm. Partly sunny, with a high near 74. Chance of precipitation is 50%. |
| Thursday Night |
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 53. Chance of precipitation is 20%. |
| Friday |
A chance of showers and thunderstorms. Mostly sunny, with a high near 74. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Cottage Grove, WI.