| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sun, Mar-29-2026 3:33pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Mostly sunny, with a high near 65. South wind around 15 mph. |
| Tonight |
Mostly clear, with a low around 43. Southwest wind 5 to 10 mph. |
| Monday |
Sunny, with a high near 75. South wind 5 to 10 mph. |
| Monday Night |
A chance of rain between 7pm and 10pm, then rain likely and scattered thunderstorms. Mostly cloudy, with a low around 54. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible. |
| Tuesday |
Rain and scattered thunderstorms. Mostly cloudy. High near 71, with temperatures falling to around 62 in the afternoon. West wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible. |
| Tuesday Night |
Rain and scattered thunderstorms before 1am. Mostly cloudy, with a low around 34. North wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday |
A slight chance of rain and snow after 1pm. Mostly cloudy, with a high near 46. Northeast wind 10 to 15 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Wednesday Night |
Rain and snow likely before 4am, then freezing rain likely and rain and snow likely. Mostly cloudy, with a low around 31. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of around one inch possible. Little or no ice accumulation expected. |
| Thursday |
Freezing rain likely and rain and snow likely. Mostly cloudy, with a high near 42. Chance of precipitation is 70%. New snow accumulation of less than one inch possible. Little or no ice accumulation expected. |
| Thursday Night |
Rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 60%. |
| Friday |
A chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 30%. |
| Friday Night |
A chance of rain. Mostly cloudy, with a low around 37. Chance of precipitation is 40%. |
| Saturday |
Rain likely. Mostly cloudy, with a high near 58. Chance of precipitation is 70%. |
| Saturday Night |
Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 70%. |
Forecast from NOAA-NWS for Cottage Grove, WI.













