| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Mon, May-04-2026 12:31am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 45. Southwest wind around 5 mph. |
| Monday |
A chance of showers and thunderstorms after 3pm. Mostly sunny. High near 77, with temperatures falling to around 72 in the afternoon. Southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Monday Night |
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 3am. Mostly cloudy, with a low around 42. Northwest wind 5 to 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Tuesday |
Partly sunny, with a high near 57. Northwest wind 5 to 10 mph. |
| Tuesday Night |
Mostly cloudy, with a low around 36. Northwest wind 5 to 10 mph. |
| Wednesday |
Mostly sunny, with a high near 55. Northwest wind 5 to 10 mph. |
| Wednesday Night |
Areas of frost after 3am. Mostly cloudy, with a low around 36. Northwest wind 0 to 5 mph. |
| Thursday |
Areas of frost before 7am, then a slight chance of rain showers. Mostly sunny, with a high near 58. West wind 0 to 10 mph. Chance of precipitation is 20%. |
| Thursday Night |
A slight chance of rain showers before 1am. Partly cloudy, with a low around 37. Chance of precipitation is 20%. |
| Friday |
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 60. Chance of precipitation is 20%. |
| Friday Night |
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 40. Chance of precipitation is 20%. |
| Saturday |
Mostly sunny, with a high near 66. |
| Saturday Night |
Partly cloudy, with a low around 45. |
| Sunday |
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 68. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.