| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Mon, Jul-13-2026 2:42pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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Heat Advisory issued July 13 at 11:45AM CDT until July 15 at 8:00PM CDT
| This Afternoon |
Sunny, with a high near 92. Heat index values as high as 96. West wind 5 to 10 mph. |
| Tonight |
Mostly clear, with a low around 69. Heat index values as high as 95. West wind around 5 mph. |
| Tuesday |
Sunny, with a high near 96. Heat index values as high as 100. West wind around 5 mph. |
| Tuesday Night |
Mostly clear, with a low around 70. Heat index values as high as 97. West wind around 5 mph. |
| Wednesday |
Sunny, with a high near 96. Northwest wind around 5 mph. |
| Wednesday Night |
Mostly clear, with a low around 70. West wind 0 to 5 mph. |
| Thursday |
Sunny, with a high near 93. Northwest wind 0 to 5 mph. |
| Thursday Night |
Mostly clear, with a low around 70. East wind around 5 mph. |
| Friday |
A slight chance of rain showers between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 20%. |
| Friday Night |
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%. |
| Saturday |
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%. |
| Saturday Night |
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 20%. |
| Sunday |
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 20%. |
| Sunday Night |
A slight chance of showers and thunderstorms. Mostly clear, with a low around 62. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.