| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Fri, Aug-07-2026 2:41am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly cloudy, with a low around 67. South wind around 5 mph. New rainfall amounts less than a tenth of an inch possible. |
| Friday |
Partly sunny, with a high near 84. Southwest wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
A slight chance of showers and thunderstorms between 8pm and 10pm, then a chance of showers and thunderstorms between 10pm and 11pm, then a slight chance of showers and thunderstorms between 11pm and midnight. Partly cloudy, with a low around 64. West wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday |
Sunny, with a high near 81. Northwest wind 5 to 10 mph. |
| Saturday Night |
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. Southwest wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Sunday |
A chance of showers and thunderstorms. Partly sunny, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Sunday Night |
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 66. Southwest wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible. |
| Monday |
Showers and thunderstorms. Mostly cloudy, with a high near 82. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible. |
| Monday Night |
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 60%. |
| Tuesday |
A chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 40%. |
| Tuesday Night |
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 40%. |
| Wednesday |
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 30%. |
| Wednesday Night |
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 59. Chance of precipitation is 20%. |
| Thursday |
Mostly sunny, with a high near 76. |
Forecast from NOAA-NWS for Cottage Grove, WI.