| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Wed, Jul-22-2026 12:31am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 52. North wind around 5 mph. |
| Wednesday |
Sunny, with a high near 74. North wind around 5 mph. |
| Wednesday Night |
Mostly clear, with a low around 54. Northwest wind 0 to 5 mph. |
| Thursday |
Mostly sunny, with a high near 79. West wind 0 to 5 mph. |
| Thursday Night |
Partly cloudy, with a low around 57. Southwest wind 0 to 5 mph. |
| Friday |
Sunny, with a high near 81. Southwest wind 0 to 10 mph. |
| Friday Night |
Mostly clear, with a low around 60. South wind 5 to 10 mph. |
| Saturday |
Mostly sunny, with a high near 86. Southwest wind 5 to 10 mph. |
| Saturday Night |
Partly cloudy, with a low around 69. |
| Sunday |
A slight chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 91. Chance of precipitation is 20%. |
| Sunday Night |
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 50%. |
| Monday |
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 50%. |
| Monday Night |
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 64. Chance of precipitation is 20%. |
| Tuesday |
Sunny, with a high near 85. |
Forecast from NOAA-NWS for Cottage Grove, WI.