| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Fri, Apr-17-2026 7:12am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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Flood Watch issued April 17 at 7:06AM CDT until April 18 at 7:00AM CDT
| Today |
Patchy fog before 8am, then showers and thunderstorms likely. Some of the storms could be severe and produce heavy rain. Partly sunny, with a high near 78. South wind 10 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible. |
| Tonight |
Showers and thunderstorms before 9pm, then showers and thunderstorms likely between 9pm and 11pm, then patchy fog and a chance of showers and thunderstorms between 11pm and 1am, then patchy fog and a slight chance of rain showers between 1am and 4am. Some of the storms could be severe and produce heavy rain. Mostly cloudy, with a low around 37. Southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible. |
| Saturday |
Mostly sunny, with a high near 46. Northwest wind 15 to 20 mph, with gusts as high as 30 mph. |
| Saturday Night |
Mostly clear, with a low around 30. West wind 5 to 15 mph, with gusts as high as 25 mph. |
| Sunday |
Mostly sunny, with a high near 48. Northwest wind 5 to 15 mph. |
| Sunday Night |
Mostly clear, with a low around 29. North wind 0 to 10 mph. |
| Monday |
Sunny, with a high near 56. Southeast wind 0 to 10 mph. |
| Monday Night |
Mostly cloudy, with a low around 44. South wind around 10 mph. |
| Tuesday |
Partly sunny, with a high near 72. |
| Tuesday Night |
Partly cloudy, with a low around 45. |
| Wednesday |
Sunny, with a high near 72. |
| Wednesday Night |
Partly cloudy, with a low around 49. |
| Thursday |
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 76. Chance of precipitation is 20%. |
| Thursday Night |
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 50%. |
Forecast from NOAA-NWS for Cottage Grove, WI.