Mount Vernon, IL Weather - Tomorrow’s Forecast

Saturday

Sunny

High:
94°F

Sunny, with a high near 94. Heat index values as high as 105. South southwest wind 7 to 13 mph, with gusts as high as 18 mph.

Saturday Night

Clear

Overnight low:
76°F

Clear, with a low around 76. South wind 6 to 10 mph.