10-Day Weather Forecast - Olney, IL

Mostly sunny. Not as cool with highs in the lower 30s. South winds 10 to 15 mph. Wind chill values as low as zero in the morning.

Partly cloudy in the evening then becoming mostly cloudy. Not as cool with lows in the mid 20s. Temperature rising to around 30 after midnight. South winds 5 to 10 mph with gusts up to 20 mph increasing to 15 to 20 mph with gusts up to 30 mph after midnight.

Mostly sunny. Not as cool with highs in the mid 40s. Southwest winds 15 to 20 mph with gusts up to 30 mph.

Partly cloudy. Lows in the lower 20s. Highs in the mid 30s.

Partly cloudy. Lows in the lower 20s. Highs in the mid 30s.

Mostly cloudy. Lows around 10 above. Highs around 20. Wind chill values as low as zero.

Mostly cloudy. Lows around 10 above. Highs around 20. Wind chill values as low as zero.

Mostly cloudy. Cold with lows zero to 5 above zero. Wind chill values as low as 15 below.

Mostly cloudy with a 30 percent chance of snow. Highs 10 to 15. Lows around 5 above. Wind chill values as low as 15 below.

Mostly cloudy with a 30 percent chance of snow. Highs 10 to 15. Lows around 5 above. Wind chill values as low as 15 below.

Mostly sunny. Highs around 20. Wind chill values as low as 10 below in the morning.

Clear. Low temperature around 11F. Dew point will be around 4F with an average humidity of 65%. Winds will be 4 mph from the NW.

Sunny. High temperature around 24F. Dew point will be around 8F with an average humidity of 63%. Winds will be 4 mph from the W.

Clear. Low temperature around 16F. Dew point will be around 10F with an average humidity of 74%. Winds will be 3 mph from the SW.

Partly cloudy. High temperature around 25F. Dew point will be around 15F with an average humidity of 72%. Winds will be 1 mph from the W.

Cloudy. Low temperature around 18F. Dew point will be around 14F with an average humidity of 73%. Winds will be 2 mph from the NW.

Mostly cloudy. High temperature around 25F. Dew point will be around 14F with an average humidity of 70%. Winds will be 4 mph from the NW.

Clear. Low temperature around 14F. Dew point will be around 11F with an average humidity of 75%. Winds will be 4 mph from the NW.