| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Tue, Sep-15-2026 10:33am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Today |
A chance of rain showers before 1pm. Cloudy, with a high near 74. West wind 10 to 15 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Tonight |
Mostly cloudy, with a low around 53. North wind around 5 mph. |
| Wednesday |
Partly sunny, with a high near 71. East wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible. |
| Wednesday Night |
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 58. East wind 0 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Thursday |
A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 76. Northeast wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Thursday Night |
Mostly cloudy, with a low around 56. Northeast wind 0 to 5 mph. |
| Friday |
A chance of rain showers after 7am. Mostly cloudy, with a high near 73. East wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible. |
| Friday Night |
A chance of rain showers before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 59. Southeast wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible. |
| Saturday |
Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 77. Chance of precipitation is 80%. |
| Saturday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 50%. |
| Sunday |
A chance of showers and thunderstorms. Partly sunny, with a high near 70. Chance of precipitation is 30%. |
| Sunday Night |
A slight chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 51. Chance of precipitation is 20%. |
| Monday |
Mostly sunny, with a high near 69. |
| Monday Night |
Partly cloudy, with a low around 49. |
Forecast from NOAA-NWS for Cottage Grove, WI.