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Residents Reminded to Take Precautions During Periods of High Temperatures

Residents Should Ensure Their Health and Well-Being

The City of Naperville reminds residents to take precautions to ensure their health, safety and well-being during days of high heat and humidity.

According to the National Weather Service, temperatures in the Naperville area will be in the 90s through Wednesday, and heat index values during that time could reach almost 100 degrees.

Please note that Monday through Friday the Naperville Municipal Center, located at 400 S. Eagle St., can be used as a cooling center during normal business hours of 8 a.m. to 5 p.m. Residents can also seek shelter at the following locations:

• County administrative buildings
• Libraries
• Park District facilities
• Senior Centers
• Township offices
• Shopping malls
• Other public places

“It's important to remember that during periods of extreme hot weather, our elderly population, those taking medications for chronic illnesses and those with special needs are among the most vulnerable to heat-related illnesses,” Emergency Management Coordinator Dan Nelson said. “Be extra vigilant and check on those individuals often. If you usually check on them once a week, make it once or more a day. Let them know about the cooling centers available.”

During hot weather, it is important to become familiar with the signs of heat exhaustion and heat stroke and what to do if you or someone you know is suffering from either of these conditions. Symptoms of heat exhaustion include dizziness, nausea, light-headedness, headache, cool and clammy skin, heavy perspiration, shallow breathing, muscle tremors and cramping.

Additional symptoms for heat stroke, which can be fatal, include severe headache, a red and dry face, skin that is hot to the touch, rapid and shallow breathing, significantly elevated body temperature, weak pulse, changes in consciousness and seizures or cardiac arrhythmias. Any person suffering from these symptoms is in a life-threatening situation and 9-1-1 should be called immediately.

The following are hot weather tips to protect yourself from heat-related illnesses:

• Stay in an air-conditioned space at home, the library, the mall, movie theater or at a cooling center.
• Drink lots of water and natural juices. Avoid alcoholic beverages, coffee and soft drinks.
• Keep shades drawn and blinds closed, but keep windows slightly open.
• Stay out of the sun and avoid going out in the heat.
• Keep electric lights off or turned down.
• Take cool baths or showers.
• Wear loose, light cotton clothing.
• Do not eat heavy meals. Avoid cooking with your oven.
• Avoid or minimize physical exertion.
• Do not sit in a hot car, even for a short time. Never leave a child or pet in a hot car.
• Check on family members, friends and neighbors to make sure they stay cool and safe.
• If you or anyone you know needs emergency medical attention, call 9-1-1.
• It is against the law to open a fire hydrant. An open hydrant hinders the fire department's ability to fight fires, reduces water pressure in your home and may cause basement flooding.

Residents should also familiarize themselves with terms pertaining to heat emergencies:

• An excessive heat watch means conditions are favorable for an excessive heat event to meet or exceed local excessive heat warning criteria in the next 12 to 48 hours.
• An excessive heat warning is issued within 12 hours of the onset of the following criteria: a heat index of at least 105°F for more than three hours per day for two consecutive days, or a heat index more than 115°F for any period of time.
• An excessive heat advisory means hazardous heat conditions have begun or will begin within 36 hours and, if caution is not exercised, they could become life threatening.

Special Keeping Cool Tip for Seniors

• During heat emergencies, seniors are urged to contact their local area agencies on aging or the Illinois Department on Aging Senior HelpLine at (800) 252-8966 for assistance with locating senior centers, adult day service sites and other buildings that serve as cooling centers.

Keeping Cool Tips for Your Pets

• Provide water and shelter from the sun at all times.
• Restrict activity during extreme heat.
• Never leave pets in parked vehicles. Even moderate heat rapidly increases and can kill the pet quickly.

Anyone needing assistance during a period of extreme heat can call City Dispatch at (630) 420-6187. For more information on the City of Naperville, visit Sign up to receive the latest news on the City of Naperville’s projects and initiatives via email at

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