Heat Warning in Effect for Toronto
TORONTO – WEATHER – If it is heat you like, it is heat you will be getting! If you seek cooler weather conditions, your best bet is to book a Porter Air flight to Thunder Bay where it is only 10 degrees this morning.
Environment Canada has issued a Heat Warning for the City of Toronto, as an extended stretch of extreme heat and humidity continues to grip the region.
🌫️ Air Quality Alert Also in Effect
In addition to the heat, elevated ground-level ozone levels are leading to reduced air quality — creating a double health risk from both heat stress and pollution.
☀️ Current Conditions – 6:00 AM EDT
📍 Toronto Pearson International Airport
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Temperature: 20.4°C
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Humidity: 82%
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Dew Point: 17.3°C
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Wind: WNW 3 km/h
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Pressure: 101.5 kPa (Falling)
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Condition: Mainly Sunny
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Humidex: 26
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Visibility: 16 km
🔎 Today’s Weather Forecast – Wednesday, July 16
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🌞 Sunny this morning, turning to a mix of sun and cloud by the afternoon.
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🌧️ 30% chance of showers with a risk of a thunderstorm.
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🌬️ Winds: Becoming south 20 km/h by noon.
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🔥 High: 32°C
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💧 Humidex: 40
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🔆 UV Index: 9 (Very High)
🌙 Tonight
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☁️ Mainly cloudy
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🌧️ 30% chance of showers this evening and before morning.
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⚡ Risk of a thunderstorm early this evening.
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🌬️ Wind southwest 20 km/h becoming light late this evening.
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🌡️ Low: 23°C
📆 Extended Forecast
Thursday, July 17
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☁️ Cloudy with 40% chance of showers.
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⚡ Thunderstorm risk in the morning and afternoon.
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🌬️ Winds becoming southwest 20 km/h.
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🌡️ High: 28°C
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💧 Humidex: 36
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🔆 UV Index: 7 (High)
🌙 Night: Cloudy periods with 40% chance of showers. Low: 13°C
Friday, July 18
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☀️ Sunny
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🌡️ High: 25°C
🌙 Night: Clear. Low: 14°C
Saturday, July 19
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🌤️ A mix of sun and cloud
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🌡️ High: 25°C
🌙 Night: Cloudy with 30% chance of showers. Low: 17°C
👚 Wardrobe & Safety Recommendations
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Lightweight, light-coloured, loose-fitting clothing is essential.
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Wide-brimmed hats and sunglasses advised for UV protection.
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Hydrate frequently — before you feel thirsty.
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Avoid outdoor activity during peak heat hours (11 AM to 4 PM).
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Take advantage of cooling centres, libraries, and shaded public areas if you don’t have access to air conditioning.
🫁 Health and Air Quality Tips
⚠️ Heat-Related Illness
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Watch for signs of heat exhaustion: headache, dizziness, nausea, dark urine, fatigue.
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If symptoms worsen, call 9-1-1 — heat stroke is a medical emergency.
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Never leave people or pets in parked vehicles.
⚠️ Poor Air Quality
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Limit time outdoors, especially for vulnerable populations: children, seniors, people with heart/lung conditions.
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Keep windows/doors closed, use air purifiers, and schedule exercise indoors.
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If outdoors is unavoidable, wear a well-fitted N95 respirator for best protection.
🧠 Weather Trivia:
Did you know Toronto’s longest heatwave on record occurred in July 2011, with seven consecutive days over 32°C? This week’s hot stretch is shaping up to rival that one!
