| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Tue, Aug-25-2026 4:33am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Today |
Patchy fog before 8am. Mostly sunny, with a high near 80. South wind 0 to 10 mph. |
| Tonight |
A chance of showers and thunderstorms between 1am and 5am. Partly cloudy, with a low around 63. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday |
Mostly sunny, with a high near 82. West wind around 10 mph. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday Night |
Mostly clear, with a low around 61. Northwest wind 5 to 10 mph. |
| Thursday |
Sunny, with a high near 80. Northwest wind around 5 mph. |
| Thursday Night |
Mostly clear, with a low around 57. North wind 0 to 5 mph. |
| Friday |
Sunny, with a high near 79. East wind 0 to 5 mph. |
| Friday Night |
Partly cloudy, with a low around 59. South wind around 5 mph. |
| Saturday |
A slight chance of rain showers after 7am. Partly sunny, with a high near 79. Chance of precipitation is 20%. |
| Saturday Night |
A slight chance of rain showers before 7pm, then 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 40%. |
| Sunday |
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 83. Chance of precipitation is 40%. |
| Sunday Night |
A chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%. |
| Monday |
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%. |
| Monday Night |
A slight chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Cottage Grove, WI.