| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Fri, Mar-27-2026 7:34pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Mostly clear, with a low around 22. Northwest wind 5 to 15 mph. |
| Saturday |
Sunny, with a high near 50. Southwest wind 5 to 15 mph. |
| Saturday Night |
Mostly cloudy, with a low around 36. Southwest wind 10 to 15 mph. |
| Sunday |
Mostly sunny, with a high near 64. Southwest wind around 10 mph. |
| Sunday Night |
Partly cloudy, with a low around 42. South wind around 5 mph. |
| Monday |
Mostly sunny, with a high near 73. South wind 5 to 10 mph. |
| Monday Night |
A chance of thunderstorms and a chance of rain between 7pm and 1am, then rain likely and a slight chance of thunderstorms. Mostly cloudy, with a low around 59. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible. |
| Tuesday |
Rain likely and a slight chance of thunderstorms. Mostly cloudy. High near 69, with temperatures falling to around 59 in the afternoon. West wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Tuesday Night |
Rain likely and a slight chance of thunderstorms before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 60%. New snow accumulation of less than half an inch possible. |
| Wednesday |
A chance of rain and snow. Partly sunny, with a high near 46. Chance of precipitation is 30%. New snow accumulation of less than half an inch possible. |
| Wednesday Night |
A chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 30%. New snow accumulation of 2 to 4 inches possible. |
| Thursday |
A chance of snow before 10am, then a chance of rain and snow. Partly sunny, with a high near 45. Chance of precipitation is 40%. New snow accumulation of 1 to 3 inches possible. |
| Thursday Night |
A chance of rain before 7pm, then a chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 30%. |
| Friday |
A slight chance of rain. Partly sunny, with a high near 55. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.