Media Release - Public Health warns of hot weather ahead

July 4, 2019: With temperatures teetering on the brink of triggering an official heat warning, Wellington-Dufferin-Guelph Public Health is reminding residents to take precautions and have a plan for the summer’s hot and humid weather.

Environment Canada issues a heat warning when the forecast shows at least two days in a row with daytime highs above 31°C accompanied by nighttime lows above 20°C, or when the forecast shows at least two days in a row with a humidex over 40°C. Residents of southern Ontario will experience temperatures close to these over the next few days.

 “It’s important to prepare for extreme temperatures ahead of time. Check Environment Canada’s forcast regularly so you can be prepared.” said Dr. Nicola Mercer, Medical Officer of Health and CEO of Wellington-Dufferin-Guelph Public Health. “Ensure you and those you care for stay hydrated by drinking lots of fluids, know where you can stop for an air-conditioned rest and remember that children, the elderly and those with chronic health conditions are at the greatest risk of heat-related illness.”

WDG Public Health is reminding residents to never leave people or pets in a car or in the direct sunlight. Check on neighbours, particularly isolated seniors. If you have air conditioning consider inviting friends or family to cool off in your home or take them to an air conditioned public place. Limit outdoor activity to the early morning or evening hours and if you are outside, apply sunscreen regularly and have a water bottle available.

For more information about protecting yourself from extreme heat, visit


Chuck Ferguson
Manager, Communications
1-800-265-7293 ext. 4374