| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Tue, May-19-2026 2:36pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Mostly cloudy, with a high near 69. Northwest wind around 15 mph. |
| Tonight |
Mostly cloudy, with a low around 44. Northwest wind 5 to 15 mph. |
| Wednesday |
Mostly sunny, with a high near 63. North wind 5 to 10 mph. |
| Wednesday Night |
Mostly cloudy, with a low around 40. East wind 5 to 10 mph. |
| Thursday |
Partly sunny, with a high near 61. East wind 5 to 10 mph. |
| Thursday Night |
Mostly cloudy, with a low around 43. East wind 5 to 10 mph. |
| Friday |
A chance of rain showers after 7am. Mostly cloudy, with a high near 61. East wind 10 to 15 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Friday Night |
A chance of rain showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 46. Northeast wind 5 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. |
| Saturday |
A chance of showers and thunderstorms before 7am. Mostly cloudy, with a high near 70. Chance of precipitation is 50%. |
| Saturday Night |
Mostly cloudy, with a low around 50. |
| Sunday |
A slight chance of rain showers after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 20%. |
| Sunday Night |
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 52. Chance of precipitation is 20%. |
| Memorial Day |
Mostly sunny, with a high near 81. |
| Monday Night |
Partly cloudy, with a low around 56. |
Forecast from NOAA-NWS for Cottage Grove, WI.