10-Day Weather Forecast - McHenry, IL

Mostly cloudy in the morning then becoming partly cloudy. Areas of fog early in the morning. Highs in the mid 60s. East winds 5 to 10 mph increasing to 10 to 15 mph in the afternoon.

Mostly cloudy. Lows around 50. East winds 10 to 15 mph. Gusts up to 25 mph after midnight.

Mostly cloudy. A chance of showers and thunderstorms in the morning then showers and thunderstorms in the afternoon. Some thunderstorms may be severe in the afternoon. Locally heavy rainfall possible in the afternoon. Breezy with highs in the lower 70s. Southeast winds 15 to 20 mph becoming 15 to 25 mph in the afternoon. Gusts up to 35 mph. Chance of precipitation 90 percent.

Mostly cloudy. Showers and thunderstorms mainly in the evening. Some thunderstorms may be severe in the evening. Locally heavy rainfall possible in the evening. Breezy with lows in the upper 40s. South winds 15 to 20 mph becoming southwest after midnight. Gusts up to 30 mph. Chance of precipitation 80 percent.

Mostly cloudy. Highs around 60.

Mostly cloudy. Lows in the lower 40s.

Partly cloudy. Highs in the upper 50s.

Partly cloudy. Lows in the upper 30s.

Partly cloudy in the morning then becoming mostly cloudy. Highs in the mid 50s.

Mostly cloudy in the evening then becoming partly cloudy. Patchy frost after midnight. Lows in the mid 30s.

Partly cloudy in the morning then becoming mostly cloudy. Highs in the mid 50s.

Mostly cloudy in the evening then becoming partly cloudy. Patchy frost after midnight. Lows in the mid 30s.

Mostly sunny in the morning then becoming partly cloudy. Highs in the upper 50s.

Clear. Low temperature around 41F. Dew point will be around 35F with an average humidity of 69%. Winds will be 2 mph from the NE.

Mostly sunny. High temperature around 57F. Dew point will be around 39F with an average humidity of 61%. Winds will be 4 mph from the NW.

Mostly cloudy. Low temperature around 43F. Dew point will be around 39F with an average humidity of 76%. Winds will be 2 mph from the N.

Mostly sunny. High temperature around 59F. Dew point will be around 42F with an average humidity of 64%. Winds will be 3 mph from the NW.

Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 46F. Dew point will be around 42F with an average humidity of 77%. Winds will be 1 mph from the NE.