Haze from smoke and high humidity persisting in Ottawa
Posted Jul 15, 2025 12:17:32 PM.
Last Updated Jul 15, 2025 12:25:35 PM.
The air quality, according to Environment Canada, in the nation’s capital on Tuesday has improved.
The weather agency shows Ottawa’s Air Quality Health Index is at a level 5, or in the moderate risk category, as of 11:00 a.m.
The forecast says the wildfire smoke that brought hazy conditions to the city and worsening air on Monday is expected to slowly move out of the city throughout the day. By Wednesday morning, Environment Canada predicts air quality will return to normal.
On top of the slightly smoky conditions, people are still dealing with the extreme heat.
July 15 is another hot, humid day in Ottawa with temperatures expected to rise to 32 C, feeling like 40 this afternoon. The humidity and heat are sticking around for another couple of day the forecast shows.
“Watch for the early signs of heat exhaustion in yourself and others. Signs may include headache, nausea, dizziness, thirst, dark urine and intense fatigue. Stop your activity and drink water,” the government agency notes.
Wednesday is believed to be similar conditions, sunny with a high of 33 C feeling like 41. Thursday a cold front is expected to sweep across the province from the southwest, but Environment Canada’s forecast shows it won’t reach the nation’s capital until Friday, when temperatures return to normal.
The highest temperature ever recorded in Ottawa on July 15 happened in 1901 when it reached 36.1 C, according to the Almanac.
