Heat warnings have been issued for parts of southern B.C. including Greater Victoria, eastern Vancouver Island and the Southern Gulf Islands.
In Port Alberni, where high temperatures are expected to reach the mid-30s, the Port Alberni Shelter Society is providing water and places to cool down, and executive director Wes Heweitt is asking people to watch out for each other. Daytime highs of at least 35 degrees and overnight lows of 18 degrees will occur over the next couple of days.
Environment Canada has issued a severe thunderstorm watch for London-Middlesex, Chatham-Kent, Leamington, and Windsor-Essex. "Check on older family, friends and neighbours".
Officials are warning the public of health risks associated with these soaring temperatures.
Signs of heat illness could include swelling, rash, cramps, fainting, heat exhaustion, heat stroke and the worsening of some health conditions.More news: 'Uncharted' fan film starring Nathan Fillion
The severe weather came amid a bout of hot summer temperatures.
People are being advised to take precautions including rescheduling outdoor activities until cooler periods, taking frequent breaks, spending time indoors and drinking water and non-dehydrating beverages.
If heading outdoors, Erven recommends people drink plenty of fluids and to drink fluids even before you start to feel thirsty.
The Coastal Fire Centre has already banned category 2 open fires, but has not yet issued a sweeping campfire ban for Vancouver Island.