Heat warnings continue in southern B.C. as temperatures soar into low 30s

British ColumbiaTemperatures are expected to cool starting Wednesday, with end-of-week rain forecast in much of the province, according to Environment Canada. Temperatures expected to cool starting Wednesday, with rain forecast in much of the provinceCBC News · Posted: Aug 12, 2025 12:38 PM EDT | Last Updated: 4 hours agoEnvironment Canada is advising people to find cooler locations as temperatures remain high in parts of southern B.C. Tuesday. (Ben Nelms/CBC)Heat warnings issued earlier this week remain in effect for much of southern B.C. Tuesday as temperatures remain high.Environment Canada has issued the warnings for much of Vancouver Island, as well as the southwest coast and parts of the Interior, with temperatures are expected to climb into the low-to-mid 30s on Tuesday. In the Fraser Canyon, South Thompson and South Okanagan, the mercury could hit up to 35 C on Wednesday, with overnight lows of 18 C. The North Thompson is looking at 31 C, while the Fraser Valley and Metro Vancouver’s inland and eastern areas could see temperatures up to 33 C, Environment Canada says. A high of 30 C is expected in Howe Sound, Whistler, Pemberton, the Sunshine Coast, and eastern and inland Vancouver Island. Temperatures are expected to cool starting Wednesday, with end-of-week rain forecast in much of the province, according to Environment Canada. If you have to be outside, wear protective clothing and sunscreen, and seek shade to stay cool, officials advise. (Maggie MacPherson/CBC)With the heat comes a moderate health risk, the weather agency says. Environment Canada is advising people in affected areas to check on loved ones who are at higher risk during the heat, including seniors, people who live alone, those with limited mobility and people with pre-existing conditions. Some of the signs and symptoms of heat-related illness include heavy sweating, muscle cramps, rash, swelling in the hands and feet, fatigue and weakness, dizziness, fainting, headache, nausea and vomiting, increased heart rate and shallow breathing and confusion, according to HealthLinkBC. Residents are being advised to drink plenty of water, wear protective clothing and sunscreen when outdoors and try to seek cooler spaces to be. Cooling centres have been set up in some areas.