| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sun, Sep-27-2026 6:01pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Mostly cloudy, with a low around 51. North wind 0 to 5 mph. |
| Monday |
Mostly sunny, with a high near 74. Northeast wind around 0 mph. |
| Monday Night |
Mostly clear, with a low around 51. Southeast wind around 0 mph. |
| Tuesday |
Partly sunny, with a high near 74. South wind 0 to 10 mph. |
| Tuesday Night |
Rain showers likely after 7pm. Mostly cloudy, with a low around 61. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday |
Rain showers likely before 7am, then showers and thunderstorms likely. Cloudy, with a high near 71. South wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible. |
| Wednesday Night |
Showers and thunderstorms. Cloudy, with a low around 62. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. |
| Thursday |
Showers and thunderstorms. Cloudy, with a high near 69. West wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible. |
| Thursday Night |
A chance of rain showers. Mostly cloudy, with a low around 49. Chance of precipitation is 40%. |
| Friday |
A slight chance of rain showers before 7am. Mostly sunny, with a high near 64. Chance of precipitation is 20%. |
| Friday Night |
A slight chance of rain showers after 1am. Mostly clear, with a low around 44. Chance of precipitation is 20%. |
| Saturday |
A slight chance of rain showers before 7am. Mostly sunny, with a high near 64. Chance of precipitation is 20%. |
| Saturday Night |
Partly cloudy, with a low around 47. |
| Sunday |
Partly sunny, with a high near 63. |
Forecast from NOAA-NWS for Cottage Grove, WI.