| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Wed, Aug-05-2026 8:01pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
A slight chance of rain showers before 9pm, then areas of fog. Partly cloudy, with a low around 60. West wind around 0 mph. Chance of precipitation is 20%. |
| Thursday |
Areas of fog before 9am. Partly sunny, with a high near 79. Northeast wind 0 to 5 mph. |
| Thursday Night |
Partly cloudy, with a low around 60. South wind 0 to 5 mph. |
| Friday |
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 83. South wind 0 to 10 mph. Chance of precipitation is 20%. |
| Friday Night |
A chance of rain showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am. Partly cloudy, with a low around 64. West wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday |
Sunny, with a high near 81. West wind around 5 mph. |
| Saturday Night |
A chance of showers and thunderstorms after 1am. Mostly clear, with a low around 63. Southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Sunday |
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Sunday Night |
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 50%. |
| Monday |
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 60%. |
| Monday Night |
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%. |
| Tuesday |
A chance of rain showers before 1pm. Partly sunny, with a high near 79. Chance of precipitation is 40%. |
| Tuesday Night |
A slight chance of rain showers after 1am. Partly cloudy, with a low around 60. Chance of precipitation is 20%. |
| Wednesday |
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 78. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.



