| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sun, Dec-21-2025 2:16am CST | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Clear, with a low around 8. Wind chill values as low as 0. Northwest wind 5 to 10 mph. |
| Sunday |
Sunny, with a high near 26. Wind chill values as low as -1. West wind around 5 mph. |
| Sunday Night |
A chance of snow after midnight. Mostly cloudy. Low around 19, with temperatures rising to around 28 overnight. South wind 5 to 10 mph. Chance of precipitation is 30%. |
| Monday |
A slight chance of snow before 10am, then a slight chance of rain between 10am and noon. Mostly cloudy, with a high near 36. South wind 5 to 10 mph. Chance of precipitation is 20%. |
| Monday Night |
Mostly cloudy, with a low around 31. Southwest wind around 5 mph. |
| Tuesday |
Mostly sunny. High near 40, with temperatures falling to around 34 in the afternoon. Northwest wind 5 to 10 mph. |
| Tuesday Night |
Mostly cloudy, with a low around 24. Northeast wind 0 to 5 mph. |
| Wednesday |
A slight chance of rain after noon. Cloudy, with a high near 41. Southeast wind around 5 mph. Chance of precipitation is 20%. |
| Wednesday Night |
A slight chance of rain before midnight. Cloudy, with a low around 34. Chance of precipitation is 20%. |
| Christmas Day |
A slight chance of rain after noon. Cloudy, with a high near 44. Chance of precipitation is 20%. |
| Thursday Night |
A slight chance of rain before midnight. Cloudy, with a low around 31. Chance of precipitation is 20%. |
| Friday |
Mostly cloudy, with a high near 37. |
| Friday Night |
Mostly cloudy, with a low around 27. |
| Saturday |
Mostly cloudy, with a high near 38. |
Forecast from NOAA-NWS for Cottage Grove, WI.