10-Day Weather Forecast - Shannon, IL

Mostly sunny. A slight chance of showers and thunderstorms in the morning. Hot with highs in the lower 90s. South winds around 5 mph, becoming southwest in the afternoon. Chance of rain 20 percent. Heat index values up to 105 in the afternoon.

Mostly clear. A chance of showers after midnight. Humid with lows around 70. Southwest winds around 5 mph, becoming northeast after midnight. Chance of rain 40 percent. Heat index values up to 103 early in the evening.

Mostly sunny. Humid with highs in the upper 80s. Northeast winds around 5 mph.

Mostly clear. Humid with lows in the mid 60s. East winds 5 to 10 mph.

Partly cloudy. Highs in the lower 80s.

Partly cloudy. Lows in the lower 60s.

Partly cloudy. Highs in the lower 80s.

Partly cloudy. Lows in the lower 60s.

Mostly sunny. Highs in the upper 80s.

Partly cloudy. A chance of showers after midnight. Lows in the lower 70s. Chance of rain 40 percent.

Partly sunny. Highs in the upper 80s.

Partly cloudy with a 40 percent chance of showers. Lows in the mid 60s.

Mostly sunny. Highs in the mid 80s.

Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 65F. Dew point will be around 64F with an average humidity of 82%. Winds will be 1 mph from the E.

Mostly sunny. High temperature around 78F. Dew point will be around 64F with an average humidity of 75%. Winds will be 1 mph from the E.

Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 65F. Dew point will be around 63F with an average humidity of 82%. Winds will be 4 mph from the SE.

Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 80F. Dew point will be around 65F with an average humidity of 73%. Winds will be 4 mph from the S.

Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 65F. Dew point will be around 65F with an average humidity of 83%. Winds will be 4 mph from the S.