| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Fri, May-29-2026 11:31pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly cloudy, with a low around 55. East wind around 5 mph. |
| Saturday |
Partly sunny, with a high near 75. East wind 5 to 15 mph. |
| Saturday Night |
Partly cloudy, with a low around 50. East wind 5 to 15 mph. |
| Sunday |
Partly sunny, with a high near 78. Southeast wind 5 to 10 mph. |
| Sunday Night |
Mostly cloudy, with a low around 53. Southeast wind 0 to 5 mph. |
| Monday |
Mostly sunny, with a high near 81. East wind 0 to 5 mph. |
| Monday Night |
Partly cloudy, with a low around 52. East wind 0 to 5 mph. |
| Tuesday |
Sunny, with a high near 81. East wind around 5 mph. |
| Tuesday Night |
Mostly clear, with a low around 52. |
| Wednesday |
Sunny, with a high near 84. |
| Wednesday Night |
Partly cloudy, with a low around 58. |
| Thursday |
Mostly sunny, with a high near 86. |
| Thursday Night |
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%. |
| Friday |
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%. |
Forecast from NOAA-NWS for Cottage Grove, WI.