| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sun, Aug-02-2026 3:13am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly cloudy, with a low around 62. North wind 5 to 10 mph. |
| Sunday |
Patchy fog between 7am and 8am. Partly sunny, with a high near 78. Northeast wind around 10 mph. |
| Sunday Night |
Mostly clear, with a low around 55. Northeast wind 0 to 10 mph. |
| Monday |
Sunny, with a high near 81. Southeast wind 0 to 5 mph. |
| Monday Night |
Mostly clear, with a low around 58. South wind 0 to 5 mph. |
| Tuesday |
Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph. |
| Tuesday Night |
A slight chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 63. West wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday |
Showers and thunderstorms likely. Mostly cloudy, with a high near 77. West wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible. |
| Wednesday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 40%. |
| Thursday |
A chance of rain showers before 1pm. Partly sunny, with a high near 79. Chance of precipitation is 30%. |
| Thursday Night |
Partly cloudy, with a low around 58. |
| Friday |
Mostly sunny, with a high near 82. |
| Friday Night |
Partly cloudy, with a low around 62. |
| Saturday |
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.