| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Mon, Sep-28-2026 6:11pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Mostly clear, with a low around 49. Southeast wind 0 to 5 mph. |
| Tuesday |
Mostly sunny, with a high near 74. South wind 5 to 10 mph. |
| Tuesday Night |
A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 61. South wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday |
Rain showers before 4pm, then showers and thunderstorms. Cloudy, with a high near 70. South wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible. |
| Wednesday Night |
Showers and thunderstorms. Cloudy, with a low around 62. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible. |
| Thursday |
Showers and thunderstorms. Cloudy, with a high near 69. West wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible. |
| Thursday Night |
A chance of rain showers. Mostly cloudy, with a low around 48. North wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible. |
| Friday |
A chance of rain showers before 7am. Partly sunny, with a high near 65. North wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
Partly cloudy, with a low around 43. |
| Saturday |
A slight chance of rain showers after 7am. Mostly sunny, with a high near 65. Chance of precipitation is 20%. |
| Saturday Night |
A slight chance of rain showers before 1am. Mostly cloudy, with a low around 49. Chance of precipitation is 20%. |
| Sunday |
Partly sunny, with a high near 64. |
| Sunday Night |
Mostly clear, with a low around 41. |
| Monday |
Sunny, with a high near 60. |
Forecast from NOAA-NWS for Cottage Grove, WI.