60050 Weather (McHenry, IL)

Weather forecast for: McHenry IL

Last Update: 11:41 pm CDT Sep 4, 2026

Tonight: A 50 percent chance of showers and thunderstorms, mainly before 3am. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 71. North northeast wind around 5 mph becoming calm.

Saturday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 82. North northeast wind 5 to 10 mph.

Saturday Night: Partly cloudy, with a low around 62. Northeast wind 5 to 10 mph.

Sunday: Mostly sunny, with a high near 79. Light east northeast wind becoming east 5 to 10 mph in the morning.

Sunday Night: Partly cloudy, with a low around 60. East northeast wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.

Labor Day: Mostly sunny, with a high near 80.

Monday Night: Mostly cloudy, with a low around 62.

Tuesday: Partly sunny, with a high near 85.

Tuesday Night: A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70.

Wednesday: Partly sunny, with a high near 88.

Wednesday Night: Partly cloudy, with a low around 64.

Thursday: Mostly sunny, with a high near 79.

Thursday Night: Partly cloudy, with a low around 58.

Friday: Partly sunny, with a high near 79.