| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sun, May-31-2026 1:21am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly cloudy, with a low around 50. East wind around 5 mph. |
| Sunday |
Partly sunny, with a high near 77. Southeast wind 5 to 10 mph. |
| Sunday Night |
Mostly cloudy, with a low around 53. East wind around 5 mph. |
| Monday |
Partly sunny, with a high near 76. Northeast wind 5 to 10 mph. |
| Monday Night |
Mostly clear, with a low around 50. Northeast wind 0 to 5 mph. |
| Tuesday |
Sunny, with a high near 79. East wind 5 to 10 mph. |
| Tuesday Night |
Mostly clear, with a low around 50. East wind 0 to 5 mph. |
| Wednesday |
Sunny, with a high near 83. South wind 0 to 5 mph. |
| Wednesday Night |
Partly cloudy, with a low around 57. |
| 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 63. Chance of precipitation is 30%. |
| Friday |
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%. |
| Friday Night |
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%. |
| Saturday |
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%. |
Forecast from NOAA-NWS for Cottage Grove, WI.