CHICAGO (WLS) — The Chicago area is bracing for several days of extreme heat starting Saturday, the first full day of summer.

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Temperatures are expected to soar into the 90s on Saturday, with the heat index reaching 100-105 degrees on Saturday, Sunday and Monday, ABC7 meteorologists said.

A National Weather Service Extreme Heat Warning went into effect for Cook County at 10 a.m. Friday, and will expire at midnight Tuesday.

There is also a Heat Advisory for most of the Chicago area.

There are plenty of ways to cool down around the city. Starting Saturday, the city’s 50 outdoor pools will be open seven days a week.

Beaches have also been open. The Chicago Park District said they are fully staffed with lifeguards, and they are reminding everyone that swimming is allowed 11 a.m. to 7p.m.

The city will also open cooling centers, which include Garfield Center, Chicago Park District locations, public libraries, city colleges and police districts. Anyone who doesn’t have air conditions are encouraged to visit one of the locations.

SEE MORE | How to stay cool in Chicago area amid rising temperatures this summer: LIST

The Office of Emergency Management is warning that the extreme temperatures could cause heat related illnesses, like heat exhaustion and heat stroke.

For those who plan on spending time in the heat, the city’s health commissioner advised people to keep cool by applying ice or wet towels to their necks, wrists, armpits and groin areas.

City leaders said they will also be checking on those who are unhoused and need a place to stay. People were also asked to check on neighbors and those who are elderly during the dangerous heat.

Officials also warned pet owners to regularly check on their furry friends.

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