10-Day Weather Forecast - Mount Vernon, IL

Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. North winds around 5 mph. Chance of rain 20 percent.

Partly cloudy. Lows in the upper 60s. North winds around 5 mph in the evening becoming light and variable.

Mostly sunny. Highs in the mid 80s. North winds around 5 mph.

Mostly clear. Lows in the upper 60s. Northeast winds around 5 mph in the evening becoming light and variable.

Mostly clear. Highs in the upper 80s. Lows in the lower 70s.

Mostly clear. Highs in the upper 80s. Lows in the lower 70s.

Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent.

Partly cloudy with a chance of thunderstorms. A chance of showers in the evening then showers likely after midnight. Lows in the lower 70s. Chance of rain 60 percent.

Showers likely. A chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 60 percent.

A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows around 70. Chance of rain 50 percent.

Partly sunny. Highs in the upper 80s.

Partly cloudy. Lows in the upper 60s. Highs in the upper 80s.

Partly cloudy. Lows in the upper 60s. Highs in the upper 80s.

Clear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 68F. Dew point will be around 70F with an average humidity of 92%. Winds will be 1 mph from the NW.

Sunny. High temperature around 87F. Dew point will be around 72F with an average humidity of 74%. Winds will be 2 mph from the NW.

Clear. Low temperature around 68F. Dew point will be around 70F with an average humidity of 90%. Winds will be 2 mph from the NW.

Sunny. High temperature around 87F. Dew point will be around 72F with an average humidity of 72%. Winds will be 1 mph from the NW.

Clear. Low temperature around 67F. Dew point will be around 70F with an average humidity of 89%. Winds will be 1 mph from the SE.