Toronto is preparing for the hottest and most humid day of the year as a yellow heat alert persists, with a stifling humidex forecasted to soar into the mid-40s.
Denise Andreacchi, the weather expert at 680 NewsRadio, anticipates that Tuesday will mark the peak of this extended heatwave, surpassing any previous heat experienced in the city in 2026.
The scorching temperatures on Tuesday are expected to surpass the records set on Canada Day, which had been the hottest day of the year at Pearson Airport. The forecasted temperatures are even poised to challenge the high set in 1995, made more unbearable by the high humidity levels.
With the humidex predicted to climb into the mid-40s, there are concerns about the hazardous conditions for individuals spending prolonged periods outdoors. The city’s heat advisory remains in effect until Thursday evening.
To help residents cope with the intense heat, a 24-hour cooling center is available at 136 Spadina Road during the heat alert. Moreover, over 170 splash pads will be operational daily from 9 a.m. to 9 p.m., along with 84 wading pools that will have varying opening hours.
Fifty-seven outdoor pools will be open from 10 a.m. to 8 p.m., with eight pools extending their hours until 11:45 p.m. throughout the heat advisory.

