Warm and Breezy Friday, But Thunderstorm Risk Rolls In Tonight
A Sunny Start to a Dynamic Day
Toronto, ON – Friday, May 30, 2025: The day begins on a bright and comfortable note across the city. As of 7:00 AM at Toronto Pearson International Airport, the temperature is 14.5°C, paired with a gentle west wind at 16 km/h. The air feels humid with 75% humidity and a dew point of 10.2°C, but it’s pleasant for your morning stroll or coffee on the patio. Visibility is a crisp 24 km, and barometric pressure is at 100.6 kPa and falling, hinting at some unsettled weather approaching.
Sunshine, Clouds, and a Shower Risk This Afternoon
Expect sunshine to stick around early this morning, but skies will transition to a mix of sun and cloud, with a 30% chance of showers developing this afternoon. While not a washout, the forecast does carry a slight risk of a thunderstorm, so don’t leave home without an umbrella—Toronto’s weather loves drama. The high will climb to a pleasant 24°C, with a humidex of 26, making it feel just a touch muggy. The UV index is strangely low at 1, likely due to lingering atmospheric haze and variable cloud cover.
Gusty Winds and a Stormy Friday Night?
As evening rolls in, cloud cover thickens, and there’s a continued 30% chance of showers, along with a risk of a thunderstorm. Winds will shift and strengthen, becoming northwest at 30 km/h, gusting to 50 km/h late this evening — so secure any lightweight patio furniture, or prepare for a neighbourhood game of “whose lawn chair is this?”
The overnight low will dip to 12°C, staying mild enough for sleeping with the windows open—unless, of course, the thunder has other plans.
A Breezy, Cooler Weekend Ahead
Saturday cools down significantly, with a high of just 17°C under a mix of sun and cloud. Gusty northwest winds at 30 km/h will keep things feeling fresh, especially near the lake. It’s a great day for a light jacket and maybe a windbreaker if you’re heading down to the waterfront.
Saturday night clears out nicely, dropping to a crisp 8°C.
Sunday follows suit, offering a mix of sun and cloud and a 30% chance of showers. With another high of 17°C, it’s a good day for brunch with a backup plan indoors in case of light rain. Sunday night remains clear with a low of 8°C.
What to Wear?
For today, go with light spring layers — breathable fabrics will serve you well through the warm and potentially stormy afternoon. You’ll want a light jacket for tonight and definitely something wind-resistant by Saturday morning. And don’t forget your rain gear for any pop-up showers.
Toronto Weather Trivia: Thunderstorm Alley?
While Toronto isn’t as famous for thunderstorms as places like Windsor or southwestern Ontario, the city averages around 27 thunderstorm days a year — and spring is one of the busiest seasons for them. Today’s forecast may add another notch to that annual tally.
