Environment Canada has issued a heat warning for:
Niagara Falls - Welland - Southern Niagara Region
St. Catharines - Grimsby - Northern Niagara Region
Daytime maximum values of 31 degrees or higher are expected today and on Monday with Humidex values near 40. Overnight minimum temperatures will only fall to near 20 degrees, providing little relief from the heat.
A cold front is expected to to move through the area Tuesday bringing an end to this event.
Extreme heat affects everyone.
The risks are greater for young children, pregnant women, older adults, people with chronic illnesses and people working or exercising outdoors.
Never leave people or pets inside a parked vehicle.
Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.