Heat warning: Humidex to hit 39 as Ottawa sweats through another sweltering day The Citizen 4 years ago It’s going to be another hot one. Read More Source: Visit the Ottawa Citizen for more! Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Heat warning issued for Ottawa as humidex expected to reach 40DateAugust 8, 2021In relation toEnvironment CanadaWeather: Severe T-storm 'watch' in effect as heat warning continues for Ottawa areaDateAugust 10, 2021In relation toLocal NewsHeat warning continues through TuesdayDateJune 7, 2021In relation toLocal News