| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Fri, Oct-30-2026 12:31am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 36. North wind around 0 mph. |
| Friday |
Partly sunny, with a high near 56. East wind 0 to 5 mph. |
| Friday Night |
A chance of rain showers after 8pm. Mostly cloudy, with a low around 45. East wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday |
Rain showers likely. Cloudy, with a high near 58. Southeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday Night |
Mostly cloudy, with a low around 48. South wind 0 to 5 mph. New rainfall amounts less than a tenth of an inch possible. |
| Sunday |
A slight chance of rain showers after noon. Mostly cloudy, with a high near 66. Southeast wind 0 to 5 mph. Chance of precipitation is 20%. |
| Sunday Night |
Mostly cloudy, with a low around 51. Southeast wind around 5 mph. |
| Monday |
A chance of rain showers. Mostly cloudy, with a high near 66. Southeast wind 5 to 15 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Monday Night |
Showers and thunderstorms likely. Mostly cloudy, with a low around 55. Chance of precipitation is 70%. |
| Tuesday |
Rain showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 70%. |
| Tuesday Night |
Rain showers likely. Mostly cloudy, with a low around 54. Chance of precipitation is 60%. |
| Wednesday |
Rain showers likely. Mostly cloudy, with a high near 65. Chance of precipitation is 60%. |
| Wednesday Night |
A chance of rain showers. Mostly cloudy, with a low around 47. Chance of precipitation is 40%. |
| Thursday |
A chance of rain showers. Mostly cloudy, with a high near 60. Chance of precipitation is 50%. |
Forecast from NOAA-NWS for Cottage Grove, WI.