Toronto – Weather – Toronto is waking up to warm, sunny skies, but the city remains under a Heat Warning as a multi-day heat event continues.
The only thing hotter than the weather is the Toronto Blue Jays!
Temperatures will soar into the low-to-mid 30s today and tomorrow, with humidex values reaching a sweltering 40. Relief is expected by Tuesday night or Wednesday, but until then, residents are urged to take precautions against heat-related illnesses.
Today’s Weather Overview
Current Conditions (7:00 AM EDT – Toronto Pearson International Airport)
-
Temperature: 23.4°C
-
Humidity: 70%
-
Dew Point: 17.6°C
-
Humidex: 29
-
Wind: SSE at 5 km/h (becoming south 20 km/h near noon)
-
Barometric Pressure: 102.0 kPa, rising
-
Visibility: 24 km
-
Sky: Mainly sunny
Daytime Forecast
-
High: 33°C
-
Humidex: 40 (feels much hotter due to humidity)
-
UV Index: 8 – Very High (sun protection essential)
-
Wind: South 20 km/h this afternoon
Tonight
-
Conditions: Clear skies
-
Low: 22°C (remains warm overnight)
-
Wind: Light after midnight
Tomorrow’s Forecast
Tuesday, August 12, 2025
-
Daytime: Mix of sun and cloud, 30% chance of afternoon showers with risk of thunderstorms.
-
High: 33°C
-
Humidex: 40
-
UV Index: 8 – Very High
Night: Cloudy with 40% chance of showers. Low 22°C.
Wednesday, August 13, 2025
-
Daytime: Mix of sun and cloud, 40% chance of showers. High 30°C.
-
Night: Clear skies. Low 19°C.
Thursday, August 14, 2025
-
Daytime: Sunny and more comfortable. High 28°C.
-
Night: Clear and pleasant. Low 19°C.
Wardrobe & Safety Recommendations
-
Today & Tomorrow:
-
Wear lightweight, light-coloured, loose-fitting clothing.
-
Apply sunscreen regularly and wear a wide-brimmed hat if outdoors.
-
Limit strenuous outdoor activity to early morning or evening hours.
-
Drink water frequently — before feeling thirsty.
-
-
Heat Health: Watch for symptoms of heat exhaustion (dizziness, headache, nausea, dark urine) and call 911 immediately if signs of heat stroke occur (confusion, red/hot skin, loss of consciousness).
-
Pets & Children: Never leave them in parked vehicles, even briefly.
Weather Trivia
The hottest temperature ever recorded in Toronto was 40.6°C on July 7, 1936 during the infamous Dust Bowl heatwave. With today’s humidex values near 40, it will feel close to that historic mark — a reminder of how oppressive southern Ontario summers can get.
