| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Mon, Aug-17-2026 5:32am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Today |
Patchy fog before 7am. Mostly sunny, with a high near 80. Northwest wind around 5 mph. |
| Tonight |
Partly cloudy, with a low around 62. West wind around 5 mph. |
| Tuesday |
A slight chance of showers and thunderstorms between noon and 1pm, then showers and thunderstorms likely. Mostly sunny, with a high near 80. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Tuesday Night |
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am. Partly cloudy, with a low around 60. Northwest wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday |
Mostly sunny, with a high near 77. North wind 0 to 5 mph. |
| Wednesday Night |
Mostly clear, with a low around 56. Northwest wind around 0 mph. |
| Thursday |
Mostly sunny, with a high near 78. East wind around 0 mph. |
| Thursday Night |
A slight chance of rain showers after 1am. Mostly clear, with a low around 58. South wind around 0 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Friday |
A chance of rain showers. Mostly sunny, with a high near 78. Chance of precipitation is 30%. |
| Friday Night |
A chance of rain showers before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 50%. |
| Saturday |
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 78. Chance of precipitation is 20%. |
| Saturday Night |
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 58. Chance of precipitation is 20%. |
| Sunday |
Sunny, with a high near 76. |
| Sunday Night |
Partly cloudy, with a low around 57. |
Forecast from NOAA-NWS for Cottage Grove, WI.