10-Day Weather Forecast - Pontoon Beach, IL

Mostly cloudy with a chance of sprinkles and flurries in the morning then mostly sunny in the afternoon. Much cooler with highs in the upper 30s. Temperature falling into the lower 30s in the afternoon. Northwest winds 15 to 20 mph with gusts up to 30 mph.

Clear. Much cooler with lows around 17. Northwest winds 10 to 15 mph with gusts up to 25 mph.

Sunny. Highs in the lower 30s. Northwest winds 5 to 10 mph becoming southwest in the afternoon.

Mostly cloudy. A chance of snow mainly in the evening. Not as cool with lows in the upper 20s. Temperature rising into the lower 30s after midnight. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 40 percent.

Mostly cloudy. Highs in the mid 40s. Lows around 20.

Mostly cloudy. Highs in the mid 40s. Lows around 20.

Partly sunny. Much cooler with highs in the mid 20s. Wind chill values as low as 5 above.

Partly cloudy. Lows around 10 above. Highs in the lower 30s. Wind chill values as low as 5 below.

Partly cloudy. Lows around 10 above. Highs in the lower 30s. Wind chill values as low as 5 below.

Partly cloudy in the evening then becoming mostly clear. Lows 15 to 20. Wind chill values as low as 5 above.

Mostly clear. Highs in the mid 30s. Lows around 10 above. Wind chill values as low as zero.

Mostly clear. Highs in the mid 30s. Lows around 10 above. Wind chill values as low as zero.

Mostly sunny. Highs in the lower 30s. Wind chill values as low as zero in the morning.

Clear. Low temperature around 27F. Dew point will be around 15F with an average humidity of 58%. Winds will be 6 mph from the SE.

Mostly sunny. High temperature around 40F. Dew point will be around 25F with an average humidity of 63%. Winds will be 8 mph from the S.

Mostly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 34F. Dew point will be around 29F with an average humidity of 77%. Winds will be 4 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 42F. Dew point will be around 33F with an average humidity of 76%. Winds will be 6 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 39F. Dew point will be around 36F with an average humidity of 83%. Winds will be 3 mph from the SE.