| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Wed, Oct-14-2026 5:06am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Cloudy, with a low around 53. North wind around 0 mph. |
| Wednesday |
Mostly cloudy, with a high near 63. Northeast wind 5 to 10 mph. |
| Wednesday Night |
Mostly cloudy, with a low around 49. Northeast wind 5 to 10 mph. |
| Thursday |
Rain showers after 10am. Cloudy, with a high near 56. East wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible. |
| Thursday Night |
Rain showers. Mostly cloudy, with a low around 44. North wind 5 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible. |
| Friday |
A slight chance of rain showers before 1pm. Partly sunny, with a high near 55. Northwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
Widespread frost after 2am. Mostly clear, with a low around 32. Northwest wind 0 to 15 mph. |
| Saturday |
Widespread frost before 9am. Sunny, with a high near 58. Southwest wind 0 to 15 mph. |
| Saturday Night |
Clear, with a low around 39. |
| Sunday |
Sunny, with a high near 64. |
| Sunday Night |
Partly cloudy, with a low around 45. |
| Monday |
Partly sunny, with a high near 65. |
| Monday Night |
Partly cloudy, with a low around 44. |
| Tuesday |
Sunny, with a high near 69. |
Forecast from NOAA-NWS for Cottage Grove, WI.