Kingston is in for a hot and humid week starting Monday, July 6, 2026, with temperatures climbing to 27 degrees Celsius today and 29 degrees on Tuesday. Humidex values will make it feel as warm as 35. Environment Canada forecasts a very high UV index of 8 for Monday and Tuesday, prompting calls for residents to take extra sun protection.
The heat and humidity are expected to peak Tuesday, reaching a high of 29 degrees with a humidex of 35. Monday will see a high of 27 degrees and a humidex of 33. Light east and east-southeast winds of 17 to 20 kilometres per hour will offer little relief from the sticky conditions.
While no formal heat warning is in effect for the city itself, KFL&A Public Health has issued a heat warning for the broader South East Health Unit region. The agency reminds residents that infants, the elderly, pregnant individuals, and outdoor workers are at higher risk during extended hot spells.
The very high UV index means skin can burn in less than 15 minutes without protection. Health officials recommend wearing sunscreen, a wide-brimmed hat, and sunglasses, and limiting direct sun exposure during the middle of the day.
A 30 percent chance of showers is in the forecast for Thursday and Friday, which may offer a brief break from the heat. For the latest local forecast details, residents can visit the Environment Canada website for Kingston.
