| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Fri, Mar-20-2026 6:57am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Today |
Partly sunny, with a high near 55. Northwest wind 5 to 10 mph. |
| Tonight |
Mostly cloudy, with a low around 37. East wind 0 to 5 mph. |
| Saturday |
Partly sunny, with a high near 65. South wind 5 to 10 mph. |
| Saturday Night |
A slight chance of rain after 1am. Partly cloudy, with a low around 46. West wind 5 to 10 mph. Chance of precipitation is 20%. |
| Sunday |
A chance of rain before 1pm. Mostly cloudy. High near 50, with temperatures falling to around 44 in the afternoon. North wind 10 to 15 mph. Chance of precipitation is 30%. |
| Sunday Night |
Mostly cloudy, with a low around 28. North wind 5 to 15 mph. |
| Monday |
Mostly sunny, with a high near 47. North wind around 5 mph. |
| Monday Night |
Partly cloudy, with a low around 33. Southeast wind around 5 mph. |
| Tuesday |
Mostly cloudy, with a high near 54. |
| Tuesday Night |
Mostly cloudy, with a low around 33. |
| Wednesday |
A slight chance of rain between 7am and 10am, then a slight chance of rain and snow between 10am and 1pm. Partly sunny, with a high near 51. Chance of precipitation is 20%. |
| Wednesday Night |
A slight chance of rain after 1am. Mostly cloudy, with a low around 39. Chance of precipitation is 20%. |
| Thursday |
A chance of rain. Mostly sunny, with a high near 56. Chance of precipitation is 30%. |
| Thursday Night |
A slight chance of rain before 10pm, then a slight chance of rain and snow between 10pm and 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.