10-Day Weather Forecast - McHenry, IL

Partly cloudy through mid afternoon then becoming mostly cloudy. A slight chance of showers and thunderstorms early to mid afternoon. Showers and thunderstorms likely late in the afternoon. Hot and humid. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of precipitation 60 percent.

Mostly cloudy. A chance of showers and thunderstorms in the evening then a slight chance of showers after midnight. Lows in the mid 60s. Southwest winds around 10 mph becoming northwest after midnight. Chance of precipitation 50 percent.

Mostly cloudy. Nearly steady temperatures in the upper 60s. North winds 10 to 15 mph.

Partly cloudy in the evening then becoming mostly clear. Lows in the upper 50s. Northeast winds 5 to 10 mph.

Partly cloudy. Highs in the mid 70s. East winds 5 to 10 mph.

Mostly cloudy. A slight chance of showers and thunderstorms in the evening then a chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of precipitation 30 percent.

Mostly cloudy with a chance of showers and thunderstorms. Highs in the lower 80s. Chance of precipitation 50 percent.

Mostly cloudy. A chance of showers and thunderstorms mainly in the evening. Lows in the upper 60s. Chance of precipitation 40 percent.

Mostly cloudy. Highs in the upper 70s.

Partly cloudy. A chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of precipitation 30 percent.

Mostly cloudy with a chance of showers and thunderstorms. Highs in the lower 80s. Chance of precipitation 40 percent.

Mostly cloudy. Lows in the upper 60s.

Mostly cloudy in the morning then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 30 percent. Heat index values up to 100.

Clear with a 35% chance for rain and thunderstorms. Low temperature around 71F. Dew point will be around 71F with an average humidity of 92%. Winds will be 6 mph from the SW.

Sunny with a 30% chance for rain and thunderstorms. High temperature around 85F. Dew point will be around 74F with an average humidity of 81%. Winds will be 8 mph from the SW.

Clear with a 30% chance for rain and thunderstorms. Low temperature around 72F. Dew point will be around 72F with an average humidity of 88%. Winds will be 7 mph from the SW.

Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 84F. Dew point will be around 73F with an average humidity of 79%. Winds will be 8 mph from the SW.

Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 69F. Dew point will be around 70F with an average humidity of 88%. Winds will be 5 mph from the SW.