Jacksonville, IL Weather - Tomorrow’s Forecast

Wednesday

Hot

High:
99°F

Sunny and hot, with a high near 99. Heat index values as high as 104. Southwest wind 6 to 9 mph, with gusts as high as 16 mph.

Wednesday Night

Clear

Overnight low:
78°F

Clear, with a low around 78. South wind 3 to 7 mph. Winds could gust as high as 15 mph.