| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sat, Sep-19-2026 9:31am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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Flood Watch issued September 19 at 8:58AM CDT until September 20 at 7:00AM CDT
| Today |
A chance of showers and thunderstorms before 11am, then showers and thunderstorms. Cloudy, with a high near 70. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible. |
| Tonight |
Showers and thunderstorms. Cloudy, with a low around 58. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible. |
| Sunday |
A chance of rain showers before 10am. Cloudy, with a high near 66. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Sunday Night |
Mostly cloudy, with a low around 51. Northeast wind 10 to 15 mph, with gusts as high as 30 mph. New rainfall amounts less than a tenth of an inch possible. |
| Monday |
Mostly cloudy, with a high near 63. Northeast wind 10 to 15 mph. |
| Monday Night |
Mostly cloudy, with a low around 46. Northeast wind 5 to 10 mph. |
| Tuesday |
Partly sunny, with a high near 62. Northeast wind 5 to 15 mph. |
| Tuesday Night |
Partly cloudy, with a low around 45. Northeast wind 5 to 10 mph. |
| Wednesday |
Mostly sunny, with a high near 65. |
| Wednesday Night |
Partly cloudy, with a low around 48. |
| Thursday |
Mostly sunny, with a high near 67. |
| Thursday Night |
Partly cloudy, with a low around 49. |
| Friday |
Mostly sunny, with a high near 71. |
| Friday Night |
Partly cloudy, with a low around 49. |
Forecast from NOAA-NWS for Cottage Grove, WI.