| 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 5:07am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly cloudy, with a low around 45. Wind around 0 mph. |
| Sunday |
Patchy fog between 7am and 8am. Partly sunny, with a high near 68. Northeast wind around 0 mph. |
| Sunday Night |
Partly cloudy, with a low around 51. North wind around 0 mph. |
| Monday |
Sunny, with a high near 72. Northeast wind around 0 mph. |
| Monday Night |
Mostly clear, with a low around 50. Southeast wind around 0 mph. |
| Tuesday |
Partly sunny, with a high near 72. South wind 0 to 10 mph. |
| Tuesday Night |
Rain showers likely after 7pm. Mostly cloudy, with a low around 58. South wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday |
Rain showers likely. Cloudy, with a high near 70. 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 |
Rain showers likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%. |
| Thursday |
Rain showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 60%. |
| Thursday Night |
A chance of rain showers. Mostly cloudy, with a low around 50. Chance of precipitation is 30%. |
| Friday |
A chance of rain showers. Partly sunny, with a high near 63. Chance of precipitation is 30%. |
| Friday Night |
A chance of rain showers. Partly cloudy, with a low around 48. Chance of precipitation is 30%. |
| Saturday |
A chance of rain showers. Partly sunny, with a high near 64. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Cottage Grove, WI.