| 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 7:33pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Partly cloudy, with a low around 61. Southwest wind around 5 mph. |
| Tuesday |
Showers and thunderstorms likely after noon. Partly sunny. High near 79, with temperatures falling to around 74 in the afternoon. 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 |
A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms between 10pm and 1am. Partly cloudy, with a low around 59. Northwest wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible. |
| Wednesday |
Mostly sunny, with a high near 78. North wind 0 to 5 mph. |
| Wednesday Night |
Mostly clear, with a low around 56. North wind around 0 mph. |
| Thursday |
Sunny, with a high near 79. Southwest wind 0 to 5 mph. |
| Thursday Night |
A chance of showers and thunderstorms after 1am. Mostly clear, with a low around 60. Southwest wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Friday |
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 79. Southwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 60. 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 77. Chance of precipitation is 20%. |
| Saturday Night |
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 56. Chance of precipitation is 20%. |
| Sunday |
Mostly sunny, with a high near 75. |
| Sunday Night |
Partly cloudy, with a low around 56. |
| Monday |
Mostly sunny, with a high near 76. |
Forecast from NOAA-NWS for Cottage Grove, WI.