Cool Sunday Mornings, Sunny Monday Vibes, and Showers by Midweek
TORONTO – WEATHER REPORT – The GTA is starting off this fine Sunday with a crisp 5°C and a sky full of promise. While you’ll want that jacket this morning, Toronto is gearing up for a beautiful spring start to the workweek with sunshine and highs hitting the 20s. But as always, spring has a twist—rain creeps back into the picture by Tuesday.
Chilly Mornings and Spring Swings: Forecast Through Wednesday
At 6:00 AM EDT, Toronto Pearson International Airport is reporting mainly sunny skies with a temperature of 5.2°C. The dew point is sitting at a cool 0.3°C, making for a relative humidity of 71%. Winds are from the north at 14 km/h, and visibility is excellent at 24 km. The barometric pressure is at 102.7 kPa and rising, a sure sign of settled weather today.
Sunday’s forecast is textbook spring: sunshine and light winds. The northeast breeze will shift and weaken this morning, with the high reaching a cool-but-pleasant 14°C. The UV index will climb to 7—classified as high—so sun protection is important, even if the air feels crisp.
Tonight will be clear and calm, with the temperature dropping to a low of 5°C. Ideal for cracking the window just enough for some fresh air, but maybe keep the flannel sheets around.
Monday kicks off the workweek with a sunshine jackpot. Highs will soar to 23°C, and with a humidex of 25, it’ll feel even warmer—perfect for patio lunches and outdoor meetings. The UV index rises to 8 (very high), so lather on the SPF and grab your sunglasses. Monday night brings increasing cloudiness, with a mild low of 12°C.
Tuesday sees the clouds move in fully, with a 30 percent chance of showers and a daytime high of 20°C. It won’t be a washout, but you’ll want the umbrella nearby—just in case. Showers become slightly more likely overnight with a 40 percent chance and a low of 13°C.
Wednesday remains cloudy with a 40 percent chance of showers throughout the day and night. The high will hover around 20°C, and the low stays at a consistent 13°C—comfortable, but certainly damper.
What to Wear: Light Layers and Umbrellas on Standby
Today calls for jackets in the morning and maybe a light sweater by mid-afternoon. Monday is all about lightweight clothes—short sleeves, sunglasses, and hydration. By Tuesday, add a layer and keep your rain gear ready. It’s spring in Toronto—sunshine and sprinkles are always in cahoots.
Historical Weather Snapshot for May 11
Toronto’s record high for this date is a sizzling 30.0°C, while the record low is a chilly -2.2°C. Today’s forecast high of 14°C lands comfortably in the middle, with warmer weather coming quickly.
Toronto Weather Trivia
Did you know? Thanks to the moderating influence of Lake Ontario, Toronto often experiences cooler springs than inland regions—but that also means it tends to warm up more gradually and consistently. It’s all about that lake breeze life.
