| NWS Forecast for: McHenry County Issued by: National Weather Service Chicago, IL Last Update: 121 AM CDT Wed Jul 29 2026 |  |
Rest Of Tonight: Mostly clear. Near steady temperature around 60. North winds around 5 mph. Wednesday: Mostly sunny. Highs in the lower 80s. Northeast winds around 5 mph. Wednesday Night: Mostly clear. Lows in the lower 60s. East winds around 5 mph in the evening, becoming light and variable. Thursday: Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 80s. West winds around 5 mph. Thursday Night: Mostly cloudy. Lows in the lower 60s. South winds around 5 mph. Friday: Cloudy. A chance of showers in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of precipitation 70 percent. Friday Night: Rain. A chance of thunderstorms, mainly in the evening. Rain may be heavy at times. Lows in the lower 60s. Chance of precipitation 90 percent. Saturday: Mostly cloudy with a slight chance of thunderstorms. Showers likely, mainly in the morning. Highs in the mid 70s. Chance of precipitation 70 percent. Saturday Night: Partly cloudy. Lows around 60. Sunday: Partly cloudy. Highs in the upper 70s. Sunday Night: Mostly clear. Lows around 60. Monday: Mostly sunny. Highs in the lower 80s. Monday Night: Mostly clear. Lows in the lower 60s. Tuesday: Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 80s. | |
| Zone Forecast: McHenry County | |
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