| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sun, Jul-26-2026 5:13am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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Heat Advisory issued July 26 at 5:10AM CDT until July 26 at 9:00PM CDT
Heat Advisory issued July 25 at 11:43PM CDT until July 26 at 9:00PM CDT
| Overnight |
Mostly cloudy, with a low around 71. Southwest wind around 0 mph. |
| Sunday |
Patchy fog before 8am. Partly sunny, with a high near 92. Heat index values as high as 101. Southwest wind 0 to 10 mph. |
| Sunday Night |
A chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 70. Heat index values as high as 101. Southwest wind around 5 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. Mostly sunny, with a high near 92. Heat index values as high as 101. Southwest wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible. |
| Monday Night |
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 67. Northwest wind 5 to 10 mph. Chance of precipitation is 20%. 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 60. East wind 0 to 5 mph. |
| Wednesday |
Sunny, with a high near 85. Northeast wind 0 to 5 mph. |
| Wednesday Night |
Mostly clear, with a low around 61. |
| Thursday |
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%. |
| Thursday Night |
A chance of rain showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%. |
| Friday |
A chance of rain showers before 1pm, then a 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%. |
| Saturday |
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.