| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sat, Jul-25-2026 3:17pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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Heat Advisory issued July 25 at 12:55PM CDT until July 26 at 9:00PM CDT
| This Afternoon |
Mostly sunny, with a high near 82. Southwest wind 5 to 10 mph. |
| Tonight |
Partly cloudy, with a low around 68. Southwest wind around 5 mph. |
| Sunday |
Mostly sunny, with a high near 92. Heat index values as high as 102. Southwest wind 5 to 15 mph. |
| Sunday Night |
A chance of showers and thunderstorms after 9pm. Mostly cloudy, with a low around 71. Heat index values as high as 101. Southwest wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Monday |
A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 91. West wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Monday Night |
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 66. Northwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Tuesday |
Sunny, with a high near 84. North wind 5 to 10 mph. |
| Tuesday Night |
Mostly clear, with a low around 61. Northeast wind 0 to 5 mph. |
| Wednesday |
Sunny, with a high near 84. |
| Wednesday Night |
Mostly clear, with a low around 62. |
| Thursday |
Mostly sunny, with a high near 85. |
| Thursday Night |
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 30%. |
| Friday |
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 30%. |
| Friday Night |
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Cottage Grove, WI.




