| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Fri, Aug-14-2026 2:46pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Mostly cloudy, with a high near 82. East wind around 10 mph. |
| Tonight |
A slight chance of showers and thunderstorms between 11pm and midnight, then a chance of showers and thunderstorms between midnight and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday |
Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms between 7am and 10am. Cloudy, with a high near 82. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Saturday Night |
A slight chance of showers and thunderstorms between 8pm and 1am, then a chance of showers and thunderstorms between 1am and 5am. Mostly cloudy, with a low around 69. West wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Sunday |
Mostly sunny, with a high near 82. Northwest wind 5 to 10 mph. New rainfall amounts between a tenth and quarter of an inch possible. |
| Sunday Night |
Mostly clear, with a low around 60. Northwest wind 0 to 5 mph. |
| Monday |
Sunny, with a high near 80. Northwest wind 0 to 5 mph. |
| Monday Night |
Mostly clear, with a low around 60. West wind 0 to 5 mph. |
| Tuesday |
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%. |
| Tuesday Night |
Showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 70%. |
| Wednesday |
Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 77. Chance of precipitation is 70%. |
| Wednesday Night |
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 57. Chance of precipitation is 20%. |
| Thursday |
Mostly sunny, with a high near 75. |
| Thursday Night |
Partly cloudy, with a low around 57. |
Forecast from NOAA-NWS for Cottage Grove, WI.