| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Tue, Mar-31-2026 9:18am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Today |
A chance of showers and thunderstorms before noon, then showers and thunderstorms likely between noon and 3pm, then a chance of showers and thunderstorms between 3pm and 5pm. Mostly cloudy. High near 66, with temperatures falling to around 50 in the afternoon. Northwest wind 0 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. |
| Tonight |
Mostly cloudy, with a low around 33. Northeast wind around 10 mph. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday |
A chance of rain and snow showers between 1pm and 2pm, then a chance of rain. Mostly cloudy, with a high near 42. Northeast wind 10 to 15 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday Night |
A chance of rain before 7pm, then rain and a slight chance of thunderstorms. Cloudy, with a low around 34. East wind around 15 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible. |
| Thursday |
Rain and a slight chance of thunderstorms. Mostly cloudy, with a high near 57. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible. |
| Thursday Night |
Rain before 1am. Mostly cloudy, with a low around 38. Southwest wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible. |
| Friday |
A slight chance of rain after 1pm. Partly sunny, with a high near 58. North wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
A slight chance of rain before 7pm, then rain and a slight chance of thunderstorms. Mostly cloudy, with a low around 41. East wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. |
| Saturday |
Rain and a slight chance of thunderstorms. Mostly cloudy, with a high near 55. Chance of precipitation is 80%. |
| Saturday Night |
Rain likely. Mostly cloudy, with a low around 33. Chance of precipitation is 60%. |
| Sunday |
A slight chance of rain before 7am. Mostly cloudy, with a high near 46. Chance of precipitation is 20%. |
| Sunday Night |
Partly cloudy, with a low around 28. |
| Monday |
Mostly sunny, with a high near 51. |
| Monday Night |
A slight chance of rain between 7pm and 10pm, then a slight chance of rain and snow between 10pm and 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.