10-Day Weather Forecast - Mount Vernon, IL

Mostly sunny. Highs in the upper 70s. Calm winds.

Mostly cloudy. Lows in the upper 40s. Calm winds.

Partly sunny. Highs in the upper 70s.

Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s.

Mostly cloudy. Highs in the mid 70s.

Mostly cloudy. Lows around 50.

Mostly clear. Highs in the upper 70s.

Mostly clear. Lows in the lower 50s.

Mostly clear. Highs in the upper 70s.

Partly cloudy. Lows in the upper 40s.

Partly cloudy. Highs in the upper 70s.

Clear. Low temperature around 52F. Dew point will be around 48F with an average humidity of 72%. Winds will be 5 mph from the E.

Partly cloudy. High temperature around 78F. Dew point will be around 55F with an average humidity of 63%. Winds will be 6 mph from the SSE.

Cloudy. Low temperature around 56F. Dew point will be around 50F with an average humidity of 72%. Winds will be 6 mph from the SE.

Mostly cloudy. High temperature around 77F. Dew point will be around 57F with an average humidity of 57%. Winds will be 9 mph from the SSE.

Mostly cloudy with widely scattered thunderstorms. Chance of storms 22%. Low temperature around 64F. Dew point will be around 58F with an average humidity of 73%. Winds will be 13 mph from the S.