10-Day Weather Forecast - Lyndon, IL

Mostly sunny. Hot with highs in the mid 90s. South winds around 5 mph, becoming southwest in the afternoon. Heat index values up to 106.

Mostly clear. A chance of showers after midnight. Humid with lows in the lower 70s. Southwest winds around 5 mph, becoming northeast after midnight. Chance of rain 30 percent. Heat index values up to 105 early in the evening.

Sunny, hot with highs around 90. Northeast winds around 5 mph. Heat index values up to 100.

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

Partly cloudy. Highs in the mid 80s.

Partly cloudy. Lows in the lower 60s.

Partly cloudy. Highs in the mid 80s.

Partly cloudy. Lows in the lower 60s.

Mostly sunny. Hot with highs around 90.

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

Mostly sunny. Hot with highs around 90.

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

Mostly sunny. Highs in the mid 80s.

Mostly 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 81%. Winds will be 1 mph from the E.

Mostly sunny. High temperature around 81F. Dew point will be around 65F with an average humidity of 71%. Winds will be 2 mph from the E.

Mostly clear. Low temperature around 64F. Dew point will be around 64F with an average humidity of 82%. Winds will be 4 mph from the SE.

Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 83F. Dew point will be around 64F with an average humidity of 66%. Winds will be 4 mph from the S.

Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 64F. Dew point will be around 65F with an average humidity of 83%. Winds will be 3 mph from the SE.