Sunday
Chance of showers and thunderstorms
High:
43°F
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 43. South wind 5 to 10 mph becoming north in the afternoon.
Mount Vernon, IL Weather - Tomorrow’s Forecast
Sunday Night
Chance of snow showers
Overnight low:
21°F
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 21. North wind 6 to 10 mph.