Weather forecast for: McHenry IL
Last Update: 2:46 am CDT Oct 27, 2026
Today: Mostly cloudy, with a high near 68. South southeast wind 5 to 10 mph.
Tonight: Mostly cloudy, with a low around 50. South wind around 5 mph.
Wednesday: Mostly sunny, with a high near 73. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 54. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday: A chance of showers and thunderstorms. Partly sunny, with a high near 71. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night: Mostly cloudy, with a low around 46.
Friday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 68.
Friday Night: A chance of showers. Cloudy, with a low around 51.
Saturday: A chance of showers before 1pm. Cloudy, with a high near 68.
Saturday Night: A chance of showers after 1am. Mostly cloudy, with a low around 52.
Sunday: A chance of showers. Mostly cloudy, with a high near 69.
Sunday Night: Mostly cloudy, with a low around 52.
Monday: Showers likely. Mostly cloudy, with a high near 67.
WeatherWorld.com
City of McHenry, IL
