Meteorologist Bill Coulter shares today’s sunny outlook and what to expect in the coming days across the region.
Toronto is now in the third day of a heat wave that has brought record-breaking temperatures to much of southern Ontario.
The temperature is expected to dip slightly today but the city will still see a daytime high of 33 C that will feel closer to 40 with the humidity.
Stay tuned here for LIVE updates throughout the day:
12:30 p.m. - Some pool hours extended
The City of Toronto says that it will keep eight public swimming pools open until 11:45 p.m. on Tuesday as the heat wave continues.
10 a.m. – When will the extreme heat end?
CP24 Metrologist Bill Coulter says that “fresher air” has already moved its way into some locations in northwestern Ontario and could head for Toronto once the current westerly winds shift somewhat later on Tuesday afternoon.
He says that while temperatures won’t “fall of a cliff” there will be a notable cooldown overnight with the temperature expected to dip to a low of 20 C.
“It is 17 C in Sault St. Marie and it is 31 C in Toronto. As long as the winds don’t come from the northwest, we are tapping into the heat and we are smothered by it in fact,” Coulter said. “Once we hit the late afternoon and we see in the wake of a few thunderstorms those winds start to shift you will see the cooler air start to descend.”
8:15 a.m. - Environment Canada confirms record
Environment Canada has confirmed that Monday was officially the hottest day Toronto has seen in nearly a decade as the city braces for the third consecutive day of scorching temperatures.
The mercury hit 36 C at Pearson International Airport on Monday, making it the hottest June 23 on record and the hottest temperature recorded in the city since July 13, 2016.
While Tuesday’s daytime high of 33 C is slightly cooler than Monday’s record-breaking heat, residents in the city will still face muggy conditions that are expected to make it feel in the low 40s.
Experts have cautioned people to stay indoors whenever possible and stay hydrated.
6:30 a.m. - Pools are open again
After some unexpected closures over the weekend, the city now says 15 outdoor pools are open for residents to cool off, including several with extended hours during the heat wave.
Monday’s heat led to power outages and even some school closures in Toronto. In a letter to parents, the TDSB said it was taking a number of steps to mitigate the hot weather in unairconditioned classrooms, including implementing fans and rotating students to air-conditioned common spaces within schools.
Some reprieve from the sweltering conditions is expected to come on Wednesday, which will see a high of 28 C, feeling like 33 when factoring in humidity.
Rain and daytime highs of 22 C and 24 C are in the forecast for Thursday and Friday respectively, according to Environment Canada.
“You’ll likely need the umbrellas for Thursday,” CP24 Meteorologist Bill Coulter said this week.
“Wet weather accompanies the return to more seasonable temperatures.”
1 of 21
Beaches in Toronto are packed as people find ways to embrace temperatures up to 36 degrees Celsius on Monday June 23, 2025. THE CANADIAN PRESS/Frank Gunn
A Montrealer named Sheila enjoys the sun in Lafontaine Park as Environment Canada issues a heat warning for the Greater Montreal area, with humidex values in the low to mid forties on Monday, June 23, 2025. THE CANADIAN PRESS/Christinne Muschi
Miguel Roque from Portugal escapes the humidity by reading in the shade of Lafontaine Park as Environment Canada issues a heat warning for the Greater Montreal area, with humidex values in the low to mid forties on Monday, June 23, 2025. THE CANADIAN PRESS/Christinne Muschi
A young girl plays in a fountain in the Montreal borough of Lachine as Environment Canada issues a heat warning for the Greater Montreal area, with humidex values in the low to mid forties on Monday, June 23, 2025. THE CANADIAN PRESS/Christinne Muschi
Beaches in Toronto are packed as people find ways to embrace temperatures up to 36 degrees Celsius on Monday June 23, 2025. THE CANADIAN PRESS/Frank Gunn
Skateboarders Anthony Eadens and Tommy Wright catch their breath after skating at the Dave Armstrong Extreme Park on Sunday, June 22, 2025, in Louisville, Ky. (AP Photo/Jon Cherry) (Jon Cherry/AP)
Jude Puroway, right, and Bay Puro cool off at a fountain during hot weather in Chicago, Sunday, June 22, 2025. (AP Photo/Nam Y. Huh) (Nam Y. Huh/AP)
A child covers his face while a stream of water pours down at Waterfront Park on Sunday, June 22, 2025, in Louisville, Ky. (AP Photo/Jon Cherry) (Jon Cherry/AP)
Working before the temperature hits 100 degrees today, Jeffrey Adcock cleans the reflecting pool in Lower Senate Park at the Capitol in Washington, Tuesday, June 24, 2025. (AP Photo/J. Scott Applewhite) (J. Scott Applewhite/AP)
Ronan Miller, seven, drinks melted ice while standing in front of a mister to cool off during hot weather before a baseball game between the Baltimore Orioles and the Texas Rangers, Monday, June 23, 2025, in Baltimore. (AP Photo/Stephanie Scarbrough) (Stephanie Scarbrough/AP)
People exercise on the Brooklyn waterfront during a heatwave on Tuesday, June 24, 2025, in New York. (AP Photo/Olga Fedorova) (Olga Fedorova/AP)
Children run through water sprayed by a fire truck to cool off outside Busch Stadium before the start of a baseball game between the St. Louis Cardinals and the Cincinnati Reds Sunday, June 22, 2025, in St. Louis. (AP Photo/Jeff Roberson) (Jeff Roberson/AP)
People relax in Rehoboth Beach, Del., despite a heat advisory warning from the National Weather Service on Sunday, June 22, 2025. (AP Photo/Mingson Lau) (Minson Lau/AP)
Lucy Stamp throws a frisbee while her dog, Kenna, retrieves it as they cool down in the West River on Monday, June 23, 2025, in Dummerston, Vt. (Kristopher Radder/The Brattleboro Reformer via AP) (Kristopher Radder/AP)
McKenna Jones, left, Kacey Wood, Tristan Smith, and Ben King, employees at the Splash Pad at Lake Stephens in Surveyor, W.Va., get cooled down during some extreme heat Monday afternoon, June 23, 2025. (Rick Barbero/The Register-Herald via AP)
Beach goers crowd a public beach on the Lake Michigan shore, Sunday, June 22, 2025, in Chicago. (AP Photo/Kiichiro Sato) (Kiichiro Sato/AP)
Carolina Garlena, 5, of Ogletown, Pa., cools off in the water at Quemahoning Family Recreation Park in Hollsopple, Pa., Monday, June 23, 2025. (Thomas Slusser/The Tribune-Democrat via AP) (Thomas Slusser/AP)
Beach goers crowd a public beach on the Lake Michigan shore, Sunday, June 22, 2025, in Chicago. (AP Photo/Kiichiro Sato) (Kiichiro Sato/AP)
A child covers his face while a stream of water pours down at Waterfront Park on Sunday, June 22, 2025, in Louisville, Ky. (AP Photo/Jon Cherry) (Jon Cherry/AP)
Lucy Stamp and her dog, Kenna, cool down under the Dummerston Covered Bridge in the West River, Monday, June 23, 2025, in Dummerston, Vt. (Kristopher Radder/The Brattleboro Reformer via AP) (Kristopher Radder/AP)
Poeple walk across the Big Four Bridge as the sun sets at Waterfront Park on Sunday, June 22, 2025, in Louisville, Ky. (AP Photo/Jon Cherry) (Jon Cherry/AP)
