Jacksonville, IL Weather - Tomorrow’s Forecast

Monday

Chance of showers and thunderstorms

High:
92°F

A 20 percent chance of showers before 9am. Mostly sunny, with a high near 92. Heat index values as high as 105. Southwest wind around 9 mph, with gusts as high as 16 mph.

Monday Night

Partly cloudy

Overnight low:
76°F

Partly cloudy, with a low around 76. South southwest wind 5 to 9 mph, with gusts as high as 17 mph.