Most of Illinois, including Lake County, is under a heat advisory from 10 a.m. to 10 p.m. today, July 17.

The temperature is forecast to reach 101 degrees, with a heat index of 105, according to the National Weather Service.

"These very hot and humid conditions will increase the risk of heat-related illnesses," National Weather Service officials said in a statement. "Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors."

The National Weather Service added that "anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency — call 911."

Here are some tips from the American Red Crossfor staying cool and safe in hot weather:

• Wear lightweight, light-colored clothing, and a hat or umbrella if you can.
• Stay hydrated -- drink water even when you don't feel thirsty. Avoid caffeine and alcohol.
• Save your workout or any strenuous activity for the coolest times of the day.
• Find somewhere air conditioned or stay on the lowest floor of your house and out of the sun if you do not have air conditioning.
• Eat smaller meals and avoid high-protein foods.
• Check on your neighbors. Keep each other safe.

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