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Extended Heat Warning issued for Halton Region

Halton Region’s Medical Officer of Health has issued an Extended Heat Warning starting August 8, 2022 for Halton Region as a result of Environment Canada continuing its Heat Warning. An Extended Heat Warning is issued when the daytime temperatures are expected to reach at least 31 degrees Celsius with overnight temperatures above 20 degrees Celsius for three or more days, or when the humidex is expected to reach 40 for three or more days. Exposure to these weather conditions can cause serious health problems. This warning is intended to inform the general public and community agencies, to keep residents safe and healthy during the heat and to recommend that precautions are taken when temperatures are high.

Heat stroke is a medical emergency. Call 911 if you are caring for someone who has a high body temperature and is either unconscious, confused or has stopped sweating. Cool the person as best you can while waiting for medical attention to arrive.

You can prevent heat-related illnesses by avoiding strenuous outdoor activities; seeking shade from the sun; spending time in air-conditioned places, such as shopping malls and community centres; and staying hydrated. Call or visit friends and neighbours who may be at risk and never leave people or pets in your care unattended in a car.

Weather and heat information are available on local radio and television stations and the Environment Canada Weather Conditions and Forecast webpage. For information and tips on how to protect your health during heat warnings, including a listing of air conditioned locations in Halton, and to sign up for email alerts, please visit our Heat Warning webpage at or call 311.

The Regional Municipality of Halton serves more than 595,000 residents in the City of Burlington, the Town of Halton Hills, the Town of Milton, and the Town of Oakville. Halton Region is committed to meeting the needs of its residents through the delivery of cost-effective, quality programs and services, including water and wastewater; Regional roads and planning; paramedic services; waste management; public health; social assistance; children’s and seniors’ services; housing services; heritage programs; emergency management and economic development. For more information, call 311 or visit Halton Region’s website at


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