10-Day Weather Forecast - Crystal Lake, IL

Mostly cloudy. Blustery. Highs in the lower 20s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Wind chill values as low as 15 below in the morning.

Partly cloudy. Patchy fog after midnight. Lows around 13. Southwest winds around 5 mph.

Mostly cloudy. Patchy fog early in the morning. Highs in the mid 30s. Southwest winds 10 to 15 mph. Gusts up to 25 mph in the afternoon.

Mostly cloudy. Lows in the upper 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph becoming west 5 to 10 mph after midnight.

Partly cloudy. Highs in the mid 30s. West winds around 5 mph becoming southwest in the afternoon.

Mostly cloudy. A chance of rain after midnight. Blustery with lows in the lower 30s. Chance of precipitation 50 percent.

Mostly cloudy. Rain likely in the morning then a slight chance of rain and snow in the afternoon. Breezy with highs in the lower 40s. Temperature falling to around 30 in the afternoon. Chance of precipitation 70 percent.

Mostly cloudy and blustery. Lows 5 to 10 above.

Mostly cloudy. Highs in the upper 20s.

Mostly cloudy. Lows around 20. Temperature rising into the upper 20s after midnight.

Mostly cloudy. Highs in the upper 30s.

Mostly cloudy. Lows around 20.

Partly cloudy in the morning then becoming mostly cloudy. Highs in the lower 30s.

Mostly clear. Low temperature around 25F. Dew point will be around 18F with an average humidity of 71%. Winds will be 3 mph from the E.

Partly cloudy. High temperature around 36F. Dew point will be around 23F with an average humidity of 65%. Winds will be 6 mph from the SE.

Mostly cloudy. Low temperature around 34F. Dew point will be around 29F with an average humidity of 79%. Winds will be 4 mph from the S.

Cloudy. High temperature around 39F. Dew point will be around 31F with an average humidity of 76%. Winds will be 2 mph from the N.

Cloudy. Low temperature around 31F. Dew point will be around 28F with an average humidity of 80%. Winds will be 4 mph from the N.