| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Thu, Sep-17-2026 6:16am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Today |
A chance of rain showers before 11am. Cloudy, with a high near 71. Northeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Tonight |
Mostly cloudy, with a low around 54. Northeast wind 0 to 5 mph. |
| Friday |
A chance of rain showers after 1pm. Mostly cloudy. High near 72, with temperatures falling to around 67 in the afternoon. East wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
Rain showers likely before 7pm, then showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 60. East 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 75. Southeast wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible. |
| Saturday Night |
Showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Northeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible. |
| Sunday |
A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 67. Northeast wind around 15 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible. |
| Sunday Night |
A chance of rain showers after 7pm. Mostly cloudy, with a low around 52. Northeast wind 10 to 15 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Monday |
A chance of rain showers. Mostly cloudy, with a high near 63. Chance of precipitation is 40%. |
| Monday Night |
A chance of rain showers. Mostly cloudy, with a low around 50. Chance of precipitation is 30%. |
| Tuesday |
A slight chance of rain showers before 1pm. Partly sunny, with a high near 65. Chance of precipitation is 20%. |
| Tuesday Night |
Mostly cloudy, with a low around 50. |
| Wednesday |
Mostly sunny, with a high near 71. |
| Wednesday Night |
Partly cloudy, with a low around 52. |
Forecast from NOAA-NWS for Cottage Grove, WI.





