| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Wed, Sep-09-2026 8:41pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Partly cloudy, with a low around 58. Northwest wind around 5 mph. |
| Thursday |
Mostly sunny, with a high near 78. Northwest wind 0 to 5 mph. |
| Thursday Night |
Mostly clear, with a low around 55. East wind 0 to 5 mph. |
| Friday |
Sunny, with a high near 79. South wind 5 to 10 mph. |
| Friday Night |
Partly cloudy, with a low around 60. South wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible. |
| Saturday |
A slight chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 80. Southwest wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday Night |
Partly cloudy, with a low around 55. Northwest wind 0 to 5 mph. |
| Sunday |
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Northeast wind 0 to 5 mph. Chance of precipitation is 20%. |
| Sunday Night |
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 50%. |
| Monday |
Showers and thunderstorms likely. Partly sunny, with a high near 82. Chance of precipitation is 70%. |
| Monday Night |
Showers and thunderstorms likely. Mostly cloudy, with a low around 60. Chance of precipitation is 70%. |
| Tuesday |
Showers and thunderstorms likely. Mostly cloudy, with a high near 74. Chance of precipitation is 70%. |
| Tuesday Night |
A slight chance of rain showers. Mostly cloudy, with a low around 55. Chance of precipitation is 20%. |
| Wednesday |
A chance of rain showers. Partly sunny, with a high near 72. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Cottage Grove, WI.