| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Wed, Apr-01-2026 1:35am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly cloudy, with a low around 32. Northeast wind around 10 mph. |
| Wednesday |
Mostly cloudy, with a high near 44. Northeast wind 10 to 15 mph. |
| Wednesday Night |
Rain showers after 8pm. Cloudy, with a low around 34. East wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible. |
| Thursday |
Rain showers before 10am, then showers and thunderstorms. Cloudy, with a high near 65. Southeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible. |
| Thursday Night |
Showers and thunderstorms before 1am. Mostly cloudy, with a low around 40. Southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. |
| Friday |
A chance of rain showers after 1pm. Mostly sunny, with a high near 63. Northwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
A chance of rain showers before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 42. East wind around 10 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible. |
| Saturday |
Showers and thunderstorms. Mostly cloudy. High near 55, with temperatures falling to around 48 in the afternoon. Southwest wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible. |
| Saturday Night |
A chance of rain showers before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%. |
| Sunday |
Partly sunny, with a high near 49. |
| Sunday Night |
Partly cloudy, with a low around 29. |
| Monday |
A slight chance of snow showers between 7am and 10am, then a chance of rain showers. Partly sunny, with a high near 52. Chance of precipitation is 40%. |
| Monday Night |
A chance of rain showers before 4am, then a slight chance of snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 40%. |
| Tuesday |
A slight chance of snow showers before 7am. Partly sunny, with a high near 47. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.