| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Tue, Jun-30-2026 3:01am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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Extreme Heat Warning issued June 30 at 3:45AM CDT until July 1 at 7:00PM CDT
| Overnight |
Partly cloudy, with a low around 76. Southwest wind around 10 mph. |
| Tuesday |
Mostly sunny, with a high near 93. Heat index values as high as 105. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. |
| Tuesday Night |
A slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 74. Heat index values as high as 102. Southwest wind 10 to 15 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Wednesday |
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 92. Heat index values as high as 101. Southwest wind 10 to 15 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Wednesday Night |
A chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 74. Southwest wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Thursday |
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Southwest wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Thursday Night |
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 71. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Friday |
Showers and thunderstorms likely. Partly sunny, with a high near 87. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. |
| Friday Night |
Showers and thunderstorms likely. Partly cloudy, with a low around 68. Chance of precipitation is 70%. |
| Independence Day |
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 50%. |
| Saturday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%. |
| Sunday |
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%. |
| Sunday Night |
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 30%. |
| Monday |
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.