Londoners are in for an uncomfortably hot and humid day on Tuesday, as temperatures are expected to feel like 37 degrees Celsius. CTV News London Meteorologist Julie Atchison reports that the high humidity will make the air feel oppressive, with the heat index reaching the mid-30s. There is also a chance of showers throughout the day, which could provide some temporary relief but may also increase humidity levels.
Heat and Humidity Impact
The combination of high temperatures and humidity can pose health risks, especially for vulnerable populations such as the elderly, children, and those with pre-existing health conditions. Residents are advised to stay hydrated, avoid strenuous outdoor activities during peak heat hours, and seek air-conditioned environments when possible. The city has opened cooling centers to help residents cope with the heat.
Weather Forecast Details
According to Atchison, the morning will start off warm and muggy, with temperatures already in the mid-20s. By afternoon, the mercury is expected to climb to around 30°C, but with the humidity, it will feel closer to 37°C. A cold front moving through the region may trigger scattered thunderstorms in the late afternoon and evening, bringing brief heavy rain and gusty winds.
Residents are encouraged to monitor local weather alerts and take precautions to stay cool. The heat is expected to break by Wednesday, with cooler and less humid conditions moving in.



