Excessive Heat Warning Extended for the City of St. Louis until Sunday, July 23, 2017 8 p.m.

07/18/17, 12:00 PM - 8:00 PM


Dangerous heat and  humidity continues through the Weekend.

The National Weather Service (NWS) has extended an Excessive Heat Warning for the City of St. Louis until 8 p.m. Sunday, July 23, 2017.

* TIMING...Through Saturday evening. 

* HEAT INDEX VALUES... between 110 and 115 each afternoon and early evening..

* IMPACTS...The combination of hot temperatures and high humidity will lead to an increased risk of heat-related stress and illness. The very young, the elderly, those without air conditioning, and those participating in strenuous outdoor activities will be the most susceptible. Also, car interiors can reach lethal temperatures in a matter of minutes.


An Excessive Heat Watch is advanced notice that there is the potential for a prolonged period of hot temperatures and high humidity. This will create a dangerous situation in which heat-related illnesses are more likely. Begin making preparations now, by making sure your air conditioning is in good working order or know where to go to stay cool.

There are numerous heat-related services available for residents:

For help with a serious heat related illness, call 911

Cool Down St. Louis helps area seniors and the disabled with their air-conditioning and utilities; and area low-income households may also apply for utility assistance only, at 314-241-7668.

Cooling centers provide shelter from excessive heat. For more information contact the United Way of Greater St. Louis Information Referral line at 1-800-427-4626 or if calling from a land line phone, dial 2-1-1. 

Immediately report animals in distress to the St. Louis Citizens’ Service Bureau by calling 314-622-4800 or contact Stray Rescue of St. Louis at 314-771-6121 ext 255 

Additional tips on safety related to extreme heat can be found on the CDC website

Summer in St. Louis Resources

Heat Related Health and Safety Tips for People: 

  • Avoid poorly ventilated areas and prolonged work in the sun. 
  • Keep plenty of fluids on hand and try to stay, or take frequent breaks in an air conditioned environment.
  • Know the signs and symptoms of heat exhaustion and heat stroke. 
  • Wear light weight loose fitting clothing. 
  • Never leave children unattended in a vehicle. Check the backseat. During extreme heat vehicle temperatures can reach lethal levels in a matter of minutes.
  • Continuously check on family members, neighbors, elderly, chronically ill, and friends. If they have air conditioning available, encourage them to use it.  

Heat Related Health and Safety Tips for Pets:

  • In extreme heat, it is important that pets are in an air conditioned environment.
  • Never leave pets alone in a vehicle.
  • Watch for coolant leaking from your vehicle—a pet drinking just a small amount can cause death.
  • Do not force your animal to exercise after a meal in hot, humid weather. Limit exercise to the early morning or evening hours.
  • Never leave your pet standing on asphalt surfaces, as they can burn their paws.

City Emergency Management Agency

Event published: Jul 17, 2017 11:02 AM
Last updated: Jul 22, 2017 10:45 PM

City of St. Louis

Gamblin-Luig, Sarah

(314) 444-5469

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