Dangerous Heat: 105-Degree Heat Index With Heat Advisory In IL

ILLINOIS — A heat advisory has been issued for the Chicago area as dangerously hot temperatures are expected on Saturday. The heat advisory has been issued for most of northern Illinois including Lake, McHenry, DeKalb, Kane, DuPage, Kendall, Grundy, Cook and Will counties from noon to 10 p.m. Saturday.

According to the National Weather Service, heat index values near 105 are expected. The hot temperatures and high humidity may cause heat illnesses to occur. You should drink plenty of fluids, stay in an air-conditioned room and stay out of the sun.

Strong storms are also possible Saturday night into Sunday, as a cold front moves into the area. Sunday will also be warm with a high of 91 degrees and heat index values up to 100, according to the weather service.

Here is a more detailed look at the weather for this weekend, with a forecast from the National Weather Service:

FRIDAY NIGHT: Mostly clear, with a low around 70. South wind 5 to 10 mph.

SATURDAY: Mostly sunny, with a high near 93. Heat index values as high as 103. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

SATURDAY NIGHT: A 50 percent chance of showers and thunderstorms, mainly after 2 a.m. Mostly cloudy, with a low around 76. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

SUNDAY: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 89. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

SUNDAY NIGHT: A 30 percent chance of showers and thunderstorms, mainly before 8 p.m. Mostly cloudy, with a low around 70.