| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Thu, Oct-22-2026 8:36am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Today |
Sunny, with a high near 73. Southeast wind 0 to 5 mph. |
| Tonight |
Mostly clear, with a low around 48. Southeast wind around 5 mph. |
| Friday |
Mostly sunny, with a high near 73. Southeast wind 5 to 10 mph. |
| Friday Night |
Partly cloudy, with a low around 50. Southeast wind around 5 mph. |
| Saturday |
Partly sunny, with a high near 71. South wind 5 to 15 mph. |
| Saturday Night |
Mostly cloudy, with a low around 52. South wind 5 to 10 mph. |
| Sunday |
Partly sunny, with a high near 71. Southwest wind around 5 mph. |
| Sunday Night |
Mostly cloudy, with a low around 49. North wind 0 to 5 mph. |
| Monday |
A slight chance of rain showers after 1pm. Mostly cloudy, with a high near 62. Chance of precipitation is 20%. |
| Monday Night |
A chance of rain showers. Mostly cloudy, with a low around 43. Chance of precipitation is 30%. |
| Tuesday |
A chance of rain showers. Mostly cloudy, with a high near 58. Chance of precipitation is 30%. |
| Tuesday Night |
A slight chance of rain showers. Mostly cloudy, with a low around 41. Chance of precipitation is 20%. |
| Wednesday |
A slight chance of rain showers before 7am. Partly sunny, with a high near 60. Chance of precipitation is 20%. |
| Wednesday Night |
A slight chance of rain showers after 1am. Partly cloudy, with a low around 43. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.