| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: Mon, May-18-2026 1:16pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Partly sunny, with a high near 79. South wind 5 to 15 mph. |
| Tonight |
A chance of showers and thunderstorms between 9pm and 1am, then showers and thunderstorms likely between 1am and 3am, then a chance of showers and thunderstorms between 3am and 4am, then a chance of showers and thunderstorms. Cloudy, with a low around 64. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Tuesday |
A chance of showers and thunderstorms before 1pm. Mostly cloudy. High near 70, with temperatures falling to around 63 in the afternoon. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Tuesday Night |
Partly cloudy, with a low around 43. Northwest wind 10 to 15 mph. |
| Wednesday |
Mostly sunny, with a high near 62. North wind 5 to 10 mph. |
| Wednesday Night |
Partly cloudy, with a low around 38. Northeast wind 0 to 5 mph. |
| Thursday |
Partly sunny, with a high near 61. East wind 5 to 10 mph. |
| Thursday Night |
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 44. East wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Friday |
A slight chance of rain showers. Partly sunny, with a high near 67. Chance of precipitation is 20%. |
| Friday Night |
A slight chance of rain showers before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 20%. |
| Saturday |
A slight chance of rain showers after 1pm. Partly sunny, with a high near 74. Chance of precipitation is 20%. |
| Saturday Night |
A slight chance of rain showers before 7pm. Mostly cloudy, with a low around 51. Chance of precipitation is 20%. |
| Sunday |
Mostly sunny, with a high near 80. |
| Sunday Night |
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 55. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Cottage Grove, WI.