| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Wed, Mar-18-2026 1:22pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Partly sunny, with a high near 37. Southwest wind 5 to 10 mph. |
| Tonight |
Patchy fog between 10pm and 11pm, then patchy fog and a slight chance of freezing rain between 11pm and midnight, then a chance of rain and patchy fog between midnight and 2am, then a chance of freezing rain and patchy fog between 2am and 4am, then a chance of rain and patchy fog between 4am and 5am, then a chance of freezing rain and patchy fog. Mostly cloudy, with a low around 29. South wind 0 to 5 mph. Chance of precipitation is 40%. Little or no ice accumulation expected. |
| Thursday |
A chance of freezing rain and patchy fog before 7am, then patchy fog and a slight chance of freezing rain between 7am and noon. Partly sunny, with a high near 44. East wind 0 to 5 mph. Chance of precipitation is 30%. Little or no ice accumulation expected. |
| Thursday Night |
Mostly cloudy, with a low around 34. South wind 0 to 5 mph. |
| Friday |
Mostly cloudy, with a high near 55. West wind 5 to 10 mph. |
| Friday Night |
Mostly cloudy, with a low around 37. Northwest wind around 5 mph. |
| Saturday |
Mostly sunny, with a high near 66. Southwest wind 5 to 10 mph. |
| Saturday Night |
Mostly cloudy, with a low around 39. Northwest wind around 10 mph. |
| Sunday |
Mostly cloudy, with a high near 48. |
| Sunday Night |
Mostly cloudy, with a low around 24. |
| Monday |
Mostly sunny, with a high near 44. |
| Monday Night |
Mostly cloudy, with a low around 29. |
| Tuesday |
Partly sunny, with a high near 51. |
| Tuesday Night |
Mostly cloudy, with a low around 33. |
Forecast from NOAA-NWS for Cottage Grove, WI.