| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Sat, Jun-20-2026 1:34am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 54. West wind 5 to 10 mph. |
| Saturday |
Sunny, with a high near 74. Northwest wind 5 to 10 mph. |
| Saturday Night |
Partly cloudy, with a low around 53. North wind 0 to 10 mph. |
| Sunday |
A chance of rain showers after 3pm. Mostly cloudy, with a high near 72. East wind 0 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Sunday Night |
A chance of rain showers before 1am. Mostly cloudy, with a low around 52. Northeast wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible. |
| Monday |
Mostly sunny, with a high near 75. Northeast wind 5 to 10 mph. |
| Monday Night |
Mostly clear, with a low around 51. East wind 0 to 5 mph. |
| Tuesday |
Mostly sunny, with a high near 76. Northwest wind 0 to 5 mph. |
| Tuesday Night |
A chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Partly cloudy, with a low around 56. Chance of precipitation is 70%. |
| Wednesday |
Showers and thunderstorms likely. Mostly sunny, with a high near 75. Chance of precipitation is 70%. |
| Wednesday Night |
Showers and thunderstorms likely before 7pm, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 54. Chance of precipitation is 60%. |
| Thursday |
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 76. Chance of precipitation is 20%. |
| Thursday Night |
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 54. Chance of precipitation is 20%. |
| Friday |
Mostly sunny, with a high near 78. |
Forecast from NOAA-NWS for Cottage Grove, WI.