| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Wed, May-20-2026 2:36pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Mostly sunny, with a high near 62. Northeast wind around 10 mph. |
| Tonight |
Mostly cloudy, with a low around 40. East wind around 10 mph. |
| Thursday |
A chance of rain showers between 10am and 5pm. Partly sunny, with a high near 60. East wind around 10 mph. |
| Thursday Night |
Mostly cloudy, with a low around 44. East wind 5 to 10 mph. |
| Friday |
A slight chance of rain showers after 1pm. Partly sunny, with a high near 63. East wind 10 to 15 mph. Chance of precipitation is 20%. |
| Friday Night |
Rain showers likely. Mostly cloudy, with a low around 48. East wind 5 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Saturday |
Rain showers likely before 7am. Partly sunny, with a high near 70. Southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday Night |
A slight chance of showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 50. South wind 0 to 5 mph. Chance of precipitation is 20%. |
| Sunday |
Partly sunny, with a high near 76. |
| Sunday Night |
Partly cloudy, with a low around 52. |
| Memorial Day |
Mostly sunny, with a high near 81. |
| Monday Night |
Partly cloudy, with a low around 55. |
| Tuesday |
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%. |
| Tuesday Night |
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Cottage Grove, WI.