| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Mon, Mar-23-2026 11:31pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
A chance of snow showers between 2am and 3am. Mostly cloudy, with a low around 31. South wind 5 to 10 mph. |
| Tuesday |
Mostly cloudy, with a high near 53. South wind 5 to 10 mph. |
| Tuesday Night |
Mostly cloudy, with a low around 34. South wind around 5 mph. |
| Wednesday |
Partly sunny, with a high near 65. Southwest wind 5 to 10 mph. |
| Wednesday Night |
Partly cloudy, with a low around 46. Southwest wind around 5 mph. |
| Thursday |
A chance of rain after 7am. Partly sunny. High near 67, with temperatures falling to around 59 in the afternoon. Northwest wind 5 to 15 mph. Chance of precipitation is 30%. |
| Thursday Night |
A chance of rain before 7pm. Mostly cloudy, with a low around 27. North wind 10 to 15 mph. Chance of precipitation is 30%. |
| Friday |
Mostly sunny, with a high near 44. North wind around 10 mph. |
| Friday Night |
Mostly clear, with a low around 25. |
| Saturday |
Sunny, with a high near 53. |
| Saturday Night |
Partly cloudy, with a low around 34. |
| Sunday |
Partly sunny, with a high near 58. |
| Sunday Night |
Partly cloudy, with a low around 39. |
| Monday |
Mostly sunny, with a high near 65. |
Forecast from NOAA-NWS for Cottage Grove, WI.