A warm and humid airmass is expected to move into Southern Ontario today, and daytime temperatures are expected to reach the low thirties with overnight lows near 20°C.
By Tuesday, temperatures will drop slightly with daytime highs expected to remain below thirty degrees.
According to Environment Canada, these conditions pose a health risk for those who are not used to the heat:
Everyone is at risk from heat, especially older adults; infants and young children; and people with chronic illnesses.
You are advised to 1) drink plenty of cool liquids before feeling thirsty; and 2) keep cool by dressing for the weather and spending a few hours each day in a cool place.
Ontario Provincial Police Sgt. Kerry Schmidt is warning drivers that today may be the hottest day this year and the high temperatures can be deadly.
In a video posted on Twitter, Sgt. Schmidt advised the public what to do if they see a child or a pet locked inside a vehicle with the windows rolled up.
“If you see anyone in distress or if you see a child in a vehicle or a pet in a vehicle make sure to call 9-1-1 immediately. Get into the vehicle and if that involves breaking a window, that may be what you need to do to save a life.”
— Sgt Kerry Schmidt (@OPP_HSD) May 28, 2018
If you’re planning on spending some time outdoors today, make sure to drink plenty of water, wear sunscreen and be on the lookout for anyone stuck inside a hot vehicle.