COVID-19 Info | Information sur la COVID-19 | COVID-19 Vaccine Vaccine Receipt | COVID-19 Self-Assessment
🔍 Search
  • Follow us:
Sign In FR

Middlesex-London Health Unit

Inner Nav

Heat Warning Extended and Now Including London and All of Middlesex County

Posted by on

The Heat Warning for parts of the Middlesex and London region, specifically Strathroy, Komoka and western Middlesex County, has been extended and updated to now include London and all of Middlesex County. Hot and humid conditions are expected through Wednesday, with maximum temperatures of 29 to 34º Celsius and humidex values nearing 40. Based on the current forecast, this Heat Warning will remain in effect until Thursday morning, when the daytime high is expected to reach 23º Celsius.

The Middlesex-London Health Unit is reminding the public to take steps to stay cool and to keep hydrated during this late summer heatwave and recommends the following tips to avoid the risks of heat-related illness:

  • Drink plenty of water and natural juices throughout the day, even if you don't feel very thirsty.
  • Never leave a child or pet in a parked car or sleeping outside in direct sunlight.
  • Avoid drinking alcoholic beverages, as well as coffee and cola.
  • When possible, avoid spending too much time outdoors. If you must be outside, seek shade as much as possible. Plan outdoor activities in the early morning or evening.
  • Wear a wide-brimmed hat when outdoors.
  • Keep shades or drapes drawn and blinds closed on the sunny side of your home.
  • Avoid turning on electric lights in your home.
  • Take a cool bath or shower periodically or cool down with cool, wet towels.
  • Avoid intense or moderately intense physical activity.
  • Use fans to draw cool air at night, but do not rely on a fan as a primary cooling device during extended periods of excessive heat.
  • Reduce the use of personal vehicles, stop unnecessary idling; avoid using oil-based paints and glues, pesticides, and gas-powered small engines.

Heat Warnings are issued when one or more of the following criteria are met:

  • Environment Canada issues a forecast calling for a daytime high of 31º Celsius or higher and a forecast low of 20º Celsius or higher for two consecutive days, or;
  • Environment Canada issues a forecast calling for a Humidex of 40 or higher for two consecutive days, or;
  • Environment Canada Forecasters anticipate that actual temperatures and humidex values in London and Middlesex County will reach the thresholds noted above.

For more information on heat-related illness, visit:

Media Contact:
Morgan Lobzun, Communications Coordinator, Middlesex-London Health Unit
519-617-0571 (cell.)

David Pavletic, Food Safety & Healthy Environments Manager, Middlesex-London Health Unit

Tags: Heat Warning