Joliet, IL Weather - Tomorrow’s Forecast

Sunday

Chance of thunderstorms

High:
86°F

A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 86. Heat index values as high as 97. West northwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

Sunday Night

Partly cloudy

Overnight low:
67°F

Partly cloudy, with a low around 67. Northwest wind 5 to 10 mph.