Toronto – Weather – Get set for a hot weekend.
Toronto kicks off the weekend with sunshine and summer heat as a stretch of hot, humid weather takes hold. A heat advisory is in effect for Saturday, with humidex values expected to reach 37.
While skies will remain mostly clear through the start of the weekend, showers could arrive late Saturday, followed by a refreshing cool-down into early next week.
Today’s Weather Overview
Current Conditions (7:00 AM EDT – Toronto Pearson International Airport)
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Temperature: 20.1°C
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Condition: Sunny
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Wind: ENE at 6 km/h
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Humidity: 83%
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Dew Point: 17.2°C
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Barometric Pressure: 102.1 kPa, rising
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Humidex: 26
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Visibility: 24 km
Today’s Forecast:
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High: 29°C
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Humidex: 34 — it will feel significantly warmer
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UV Index: 8 — Very High: apply sunscreen, wear sunglasses and a wide-brim hat if outdoors.
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Tonight: Clear skies persist. Low: 21°C — warm and muggy overnight.
Weekend Forecast
Saturday, August 16, 2025
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Hot and humid throughout the day.
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High: 32°C
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Humidex: 37 — Heat Warning in effect
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Wind: Becoming northeast at 20 km/h in the afternoon.
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UV Index: 8 — Very High
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Night: Cloudy with a 60% chance of showers. Low: 21°C
Sunday, August 17, 2025
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A mix of sun and cloud with a 40% chance of showers — a possible brief break from the heat.
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High: 29°C
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Night: Skies clear and much cooler. Low: 13°C
Monday, August 18, 2025
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Sunny and refreshing.
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High: 23°C
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Night: Cloudy periods develop. Low: 14°C
Wardrobe Recommendations
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Friday & Saturday: Lightweight, breathable clothing is essential. Consider moisture-wicking fabrics. Sunglasses, sunscreen, and hats are must-haves. Avoid prolonged outdoor activity during peak afternoon heat.
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Sunday: Still warm — summer attire is appropriate, but keep an umbrella nearby just in case.
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Monday: Much cooler; light long sleeves or a light jacket may be comfortable in the morning and evening.
Weather Trivia
Did you know? Toronto’s record high for August 16 is 36.3°C, set back in 1949. While we’re not breaking records this weekend, the humidex near 37 will make it feel just as intense. Toronto averages 8–10 heat warning days each August — and this weekend fits right in.
