| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Wed, Sep-30-2026 2:36pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Patchy drizzle and patchy fog. Cloudy, with a high near 68. Southwest wind around 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Tonight |
Patchy drizzle and patchy fog before 7pm, then patchy fog and a slight chance of rain showers between 7pm and 8pm, then rain showers and patchy fog between 8pm and 1am, then patchy fog and showers and thunderstorms. Cloudy, with a low around 63. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible. |
| Thursday |
Patchy fog and showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 68. North wind 0 to 5 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible. |
| Thursday Night |
A slight chance of rain showers before 7pm. Mostly cloudy, with a low around 48. North wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Friday |
Sunny, with a high near 63. North wind 5 to 10 mph. |
| Friday Night |
Mostly clear, with a low around 41. North wind 0 to 5 mph. |
| Saturday |
Sunny, with a high near 65. Southeast wind 0 to 5 mph. |
| Saturday Night |
Partly cloudy, with a low around 47. Southwest wind around 5 mph. |
| Sunday |
Mostly sunny, with a high near 68. |
| Sunday Night |
Mostly clear, with a low around 41. |
| Monday |
Sunny, with a high near 61. |
| Monday Night |
Clear, with a low around 39. |
| Tuesday |
Sunny, with a high near 64. |
| Tuesday Night |
A slight chance of rain showers after 1am. Partly cloudy, with a low around 51. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.





