10-Day Weather Forecast - Olney, IL

Mostly sunny. Hot with highs in the mid 90s. South winds 5 to 10 mph.

Partly cloudy in the evening, then clearing. Lows in the lower 70s. South winds 5 to 10 mph.

Sunny, hot with highs in the upper 90s. Southwest winds 10 to 15 mph. Heat index values up to 104.

Showers with a chance of thunderstorms. Lows around 70. Chance of rain 90 percent.

Showers with a chance of thunderstorms. Highs in the lower 80s. Chance of rain 90 percent.

Partly cloudy. Lows in the lower 60s.

Partly cloudy. Highs in the mid 80s.

Partly cloudy. Lows in the lower 60s.

Mostly sunny. A chance of showers in the morning. Highs around 90. Chance of rain 30 percent.

Mostly clear. Lows in the mid 60s.

Mostly clear. Highs around 90.

Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 70F. Dew point will be around 64F with an average humidity of 69%. Winds will be 5 mph from the SE.

Sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 90F. Dew point will be around 68F with an average humidity of 63%. Winds will be 4 mph from the SW.

Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 64F. Dew point will be around 63F with an average humidity of 73%. Winds will be 2 mph from the N.

Sunny. High temperature around 83F. Dew point will be around 61F with an average humidity of 61%. Winds will be 4 mph from the NW.

Clear. Low temperature around 57F. Dew point will be around 57F with an average humidity of 75%. Winds will be 6 mph from the N.

Sunny. High temperature around 77F. Dew point will be around 56F with an average humidity of 63%. Winds will be 6 mph from the N.

Clear. Low temperature around 55F. Dew point will be around 54F with an average humidity of 76%. Winds will be 5 mph from the NE.