Waterloo-Wellington remains under heat warning
Environment Canada has issued a heat warning for most of southwestern Ontario, including Waterloo-Wellington, with local temperatures expected to climb into the high twenties or low thirties.
Humidex values are expected to reach the high thirties or low forties.
The national weather agency originally said the two-day heat event was expected Saturday through Sunday, but reissued the warning for Monday.
Cooler temperatures are now expected to return on Tuesday.
Overnight lows are expected in the low twenties, bringing little relief from the heat.
Hot humid air can also bring deteriorating air quality and result in the Air Quality Health Index approaching the high-risk category, Environment Canada warns.
Environment Canada says young children, pregnant women, older adults, people with chronic illnesses and people working or exercising outdoor are at highest risk from the heat.
Symptoms of heat illness include swelling, rash, cramps, fainting, heat exhaustion, and heat stroke.
People are advised to drink plenty of water, even before feeling thirsty, and check on older friends, family and neighbours.
The Region of Waterloo opens cooling centres during heat warnings. Their locations and hours can be found here.
CTVNews.ca Top Stories
Canadian gov't proposes new foreign influence registry as part of wide-spanning new bill
Prime Minister Justin Trudeau's government is proposing a suite of new measures and law changes aimed at countering foreign interference in Canada, amid extensive scrutiny over past meddling attempts and an ever-evolving threat landscape.
Boeing Starliner capsule's first crewed test flight postponed
The long-awaited first crewed test flight of Boeing's new Starliner space capsule was called off for at least 24 hours over a technical issue that launch teams were unable to resolve in time for the planned Monday night lift-off.
Teacher charged in historical sexual assault of Calgary teenage girl
Calgary police have charged a teacher with the alleged sexual assault of a teenage girl more than 20 years ago.
Winnipeg man admits to killing four women, argues he's not criminally responsible
Defence lawyers of Jeremy Skibicki have admitted in court the accused killed four Indigenous women, but argues he is not criminally responsible for the deaths by way of mental disorder – this latest development has triggered a judge-alone trial rather than a jury trial.
Man banned from owning animals after fatal Calgary dog attack
The owner of three Calgary dogs that got loose and mauled a woman to death in 2022 has been ordered to pay a $15,000 fine within one year and banned from owning any animal for 15 years.
East-end Ottawa family dealing with massive rat infestation
Residents in Ottawa’s Elmridge Gardens complex are dealing with a rat infestation that just won’t go away. Now, after doing everything they can to try to fix the issue, they are pleading with the city to step in and help.
Mediterranean staple may lower your risk of death from dementia, study finds
A daily spoonful of olive oil could lower your risk of dying from dementia, according to a new study by Harvard scientists.
An El Nino-less summer is coming. Here's what that could mean for Canada
As Canadians brace themselves for summer temperatures, forecasters say a weakening El Nino cycle doesn’t mean relief from the heat.
Newfoundland and Labrador latest province to tighten rules on Airbnbs
Newfoundland and Labrador is the latest jurisdiction to bring in stricter rules for short-term rentals, with a coming set of regulations that will force operators to register with the provincial government.