Mount Vernon, IL Weather - Tomorrow’s Forecast

Sunday

Slight chance of thunderstorms

High:
78°F

A slight chance of showers before 7am, then a slight chance of showers and thunderstorms between 7am and 10am. Partly sunny, with a high near 78. Northwest wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Sunday Night

Partly cloudy

Overnight low:
57°F

Partly cloudy, with a low around 57. North northwest wind 5 to 9 mph becoming calm in the evening.