| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Tue, May-05-2026 8:37pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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Frost Advisory issued May 5 at 8:32PM CDT until May 6 at 8:00AM CDT
| Tonight |
Mostly cloudy, with a low around 33. Northwest wind 5 to 10 mph. |
| Wednesday |
Widespread frost before 7am. Partly sunny, with a high near 55. Northwest wind 5 to 10 mph. |
| Wednesday Night |
Widespread frost after 3am. Partly cloudy, with a low around 34. West wind 0 to 10 mph. |
| Thursday |
Areas of frost before 7am, then a chance of rain showers. Mostly sunny, with a high near 59. West wind 5 to 15 mph. Chance of precipitation is 30%. |
| Thursday Night |
A chance of rain showers before 7pm. Partly cloudy, with a low around 42. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. |
| Friday |
A chance of rain showers after 1pm. Partly sunny, with a high near 65. Southwest 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. Partly cloudy, with a low around 44. West wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday |
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 71. West wind 5 to 15 mph. Chance of precipitation is 20%. |
| Saturday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. Chance of precipitation is 40%. |
| Sunday |
A chance of rain showers before 1pm. Partly sunny, with a high near 62. Chance of precipitation is 40%. |
| Sunday Night |
Partly cloudy, with a low around 40. |
| Monday |
Sunny, with a high near 64. |
| Monday Night |
Partly cloudy, with a low around 43. |
| Tuesday |
A slight chance of rain showers after 7am. Mostly sunny, with a high near 70. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.








