| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sat, Jul-18-2026 12:32am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
A slight chance of rain showers after 5am. Mostly cloudy, with a low around 74. Southwest wind 5 to 10 mph. Chance of precipitation is 20%. |
| Saturday |
A slight chance of rain showers before 9am. Mostly sunny, with a high near 86. Northwest wind around 10 mph. Chance of precipitation is 20%. |
| Saturday Night |
Areas of smoke after midnight. Partly cloudy, with a low around 61. Northeast wind 0 to 10 mph. |
| Sunday |
Areas of smoke. Mostly sunny, with a high near 81. East wind 0 to 5 mph. |
| Sunday Night |
Patchy smoke before 7pm. Mostly clear, with a low around 63. South wind around 5 mph. |
| Monday |
A chance of rain showers between 7am and 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 87. Southwest wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible. |
| Monday Night |
Showers and thunderstorms likely. Partly cloudy, with a low around 68. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible. |
| Tuesday |
A chance of rain showers before 7am. Sunny, with a high near 81. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Tuesday Night |
Mostly clear, with a low around 58. |
| Wednesday |
Sunny, with a high near 77. |
| Wednesday Night |
Mostly clear, with a low around 56. |
| Thursday |
Sunny, with a high near 80. |
| Thursday Night |
Mostly clear, with a low around 60. |
| Friday |
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.