10-Day Weather Forecast - Crystal Lake, IL

Partly cloudy and blustery. Highs in the lower 20s. Northwest winds 15 to 20 mph with gusts up to 35 mph becoming west 10 to 15 mph with gusts up to 25 mph in the afternoon. Wind chill values as low as 10 below in the morning.

Mostly cloudy. Lows around 20. Temperature rising into the upper 20s after midnight. South winds 10 to 15 mph. Gusts up to 25 mph after midnight.

Mostly cloudy. Highs in the upper 30s. Southwest winds 10 to 15 mph with gusts up to 25 mph becoming west in the afternoon.

Mostly clear. Lows around 13. West winds 10 to 15 mph with gusts up to 25 mph.

Sunny. Highs in the mid 20s.

Partly cloudy in the evening then becoming mostly cloudy. Lows 15 to 20.

Mostly cloudy. Highs in the upper 30s.

Mostly cloudy. Near steady temperature in the lower 30s.

Mostly cloudy. Highs in the mid 40s.

Mostly cloudy. Lows around 30.

Mostly cloudy. Highs in the mid 40s.

Mostly cloudy. A chance of rain in the evening. Near steady temperature in the upper 30s. Chance of precipitation 30 percent.

Mostly cloudy. Highs in the upper 40s.

Cloudy. Low temperature around 42F. Dew point will be around 43F with an average humidity of 84%. Winds will be 7 mph from the W.

Cloudy. High temperature around 46F. Dew point will be around 38F with an average humidity of 76%. Winds will be 2 mph from the NW.

Cloudy. Low temperature around 39F. Dew point will be around 37F with an average humidity of 82%. Winds will be 1 mph from the E.

Cloudy. High temperature around 43F. Dew point will be around 34F with an average humidity of 76%. Winds will be 4 mph from the NE.

Cloudy. Low temperature around 36F. Dew point will be around 33F with an average humidity of 79%. Winds will be 6 mph from the NE.