| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sun, Aug-09-2026 9:33pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Patchy fog after 1am. Mostly cloudy, with a low around 65. Northeast wind around 0 mph. New rainfall amounts less than a tenth of an inch possible. |
| Monday |
Patchy fog before 9am. Partly sunny, with a high near 83. Northeast wind 0 to 5 mph. |
| Monday Night |
Patchy fog and a slight chance of rain showers after 3am. Partly cloudy, with a low around 65. East wind around 0 mph. Chance of precipitation is 20%. |
| Tuesday |
A chance of rain showers and patchy fog before 7am, then patchy fog and showers and thunderstorms. Mostly cloudy, with a high near 81. Southeast wind 0 to 5 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible. |
| Tuesday Night |
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 65. East wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Wednesday |
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 82. North wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Wednesday Night |
Partly cloudy, with a low around 62. North wind 0 to 5 mph. |
| Thursday |
Partly sunny, with a high near 77. Northeast wind 0 to 5 mph. |
| Thursday Night |
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 20%. |
| Friday |
A slight chance of rain showers before 1pm. Mostly sunny, with a high near 75. Chance of precipitation is 20%. |
| Friday Night |
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57. Chance of precipitation is 30%. |
| Saturday |
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitation is 30%. |
| Saturday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 40%. |
| Sunday |
A chance of rain showers. Mostly cloudy, with a high near 76. Chance of precipitation is 40%. |
Forecast from NOAA-NWS for Cottage Grove, WI.