| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Thu, Mar-19-2026 1:26pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Sunny, with a high near 51. East wind around 5 mph. |
| Tonight |
Areas of fog between 9pm and 5am. Mostly cloudy, with a low around 36. South wind around 5 mph. |
| Friday |
Patchy fog between 10am and 11am. Mostly cloudy, with a high near 53. Northwest wind 5 to 10 mph. |
| Friday Night |
Areas of fog after 11pm. Mostly cloudy, with a low around 36. Northeast wind 0 to 5 mph. |
| Saturday |
Mostly sunny, with a high near 66. South wind 5 to 10 mph. |
| Saturday Night |
Partly cloudy, with a low around 44. South wind 5 to 10 mph. |
| Sunday |
A slight chance of rain between 7am and 1pm. Mostly cloudy, with a high near 52. Northeast wind 10 to 15 mph. Chance of precipitation is 20%. |
| Sunday Night |
Mostly cloudy, with a low around 27. North wind 5 to 15 mph. |
| Monday |
Mostly sunny, with a high near 46. |
| Monday Night |
Mostly cloudy, with a low around 31. |
| Tuesday |
Mostly cloudy, with a high near 53. |
| Tuesday Night |
Mostly cloudy, with a low around 33. |
| Wednesday |
Mostly cloudy, with a high near 52. |
| Wednesday Night |
A slight chance of rain after 1am. Mostly cloudy, with a low around 39. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.