10-Day Weather Forecast - Deer Park, IL

Rain or drizzle in the morning then a chance of rain and snow in the afternoon. Windy with highs in the upper 40s. Temperature falling into the mid 30s in the afternoon. South winds 15 to 20 mph becoming west 15 to 25 mph in the afternoon. Gusts up to 40 mph. Chance of precipitation near 100 percent.

Mostly cloudy. Scattered snow showers in the evening then a chance of flurries after midnight. Windy with lows around 11. West winds 15 to 25 mph with gusts up to 40 mph. Chance of precipitation 40 percent. Wind chill values as low as 9 below.

Partly cloudy and blustery. Highs in the upper 20s. West winds 15 to 20 mph with gusts up to 30 mph diminishing to around 10 mph in the afternoon.

Mostly cloudy. Lows in the lower 20s. Temperature rising into the lower 30s after midnight.

Mostly cloudy. Highs in the lower 40s.

Partly cloudy in the evening then clearing. Lows around 20.

Mostly sunny. Highs in the lower 30s.

Partly cloudy in the evening then becoming mostly cloudy. Near steady temperature in the mid 20s.

Mostly cloudy. Highs around 40.

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

Mostly cloudy. Highs in the upper 40s.

Mostly cloudy. Low temperature around 35F. Dew point will be around 34F with an average humidity of 89%. Winds will be 5 mph from the N.

Cloudy. High temperature around 47F. Dew point will be around 38F with an average humidity of 84%. Winds will be 6 mph from the SE.

Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 45F. Dew point will be around 44F with an average humidity of 90%. Winds will be 6 mph from the S.

Cloudy. High temperature around 51F. Dew point will be around 45F with an average humidity of 85%. Winds will be 6 mph from the S.

Cloudy. Low temperature around 48F. Dew point will be around 46F with an average humidity of 87%. Winds will be 4 mph from the S.

Cloudy. High temperature around 54F. Dew point will be around 44F with an average humidity of 76%. Winds will be 6 mph from the SW.

Cloudy. Low temperature around 38F. Dew point will be around 36F with an average humidity of 76%. Winds will be 3 mph from the NW.