| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sat, Oct-31-2026 1:21am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
A chance of rain showers after 2am. Cloudy, with a low around 46. East wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday |
Rain showers. Mostly cloudy, with a high near 58. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday Night |
A chance of rain showers before 7pm. Mostly cloudy, with a low around 47. Southeast wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Sunday |
Partly sunny, with a high near 65. Southeast wind 0 to 5 mph. |
| Sunday Night |
Mostly cloudy, with a low around 50. Southeast wind around 5 mph. |
| Monday |
Rain showers likely. Mostly cloudy, with a high near 65. Southeast wind 5 to 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Monday Night |
Rain showers before midnight, then showers and thunderstorms. Mostly cloudy, with a low around 57. South wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible. |
| Tuesday |
Rain showers. Mostly cloudy, with a high near 68. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible. |
| Tuesday Night |
Showers and thunderstorms likely. Mostly cloudy, with a low around 49. Chance of precipitation is 70%. |
| Wednesday |
A chance of rain showers. Partly sunny, with a high near 62. Chance of precipitation is 40%. |
| Wednesday Night |
A slight chance of rain showers after midnight. Partly cloudy, with a low around 45. Chance of precipitation is 20%. |
| Thursday |
A chance of rain showers. Partly sunny. High near 63, with temperatures falling to around 58 in the afternoon. Chance of precipitation is 30%. |
| Thursday Night |
A slight chance of rain showers. Mostly cloudy, with a low around 43. Chance of precipitation is 20%. |
| Friday |
A slight chance of rain showers before noon. Partly sunny, with a high near 59. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.