Toronto Weather Outlook – Monday, June 30, 2025
Morning Sunshine, Afternoon Sparks?
Toronto is off to a radiant start this morning with mostly sunny skies and a comfy 20.3°C as of 7:00 AM. It’s humid, too — humidity sits at 76%, giving us a humidex of 25. Winds are meandering in from the east-southeast at 6 km/h, while the barometric pressure is at 101.4 kPa and falling — a telltale sign the weather may have drama in store later today.
Enjoy that sunshine while it lasts, because as the afternoon rolls in, so do the clouds. Cloud cover increases this afternoon, bringing a 30% chance of showers and the risk of a thunderstorm late in the day. Temperatures will climb to a toasty 29°C, but the humidex will make it feel more like 36°C — classic southern Ontario sizzle.
And with a UV index of 10 (very high), sunburns can sneak up faster than a summer TTC delay — sunscreen is a must!
Tonight – Stormy and Steamy
By this evening, things ramp up with a 70% chance of showers and possible thunderstorms overnight. Winds shift to the south at 20 km/h before calming down near midnight. The overnight low of 20°C will keep things warm and sticky into Canada Day morning.
Canada Day Forecast – Tuesday, July 1, 2025
Weather-wise, the holiday will start with a bit of uncertainty. Expect mainly cloudy skies, and a 30% chance of lingering morning and early afternoon showers. But don’t worry — the sun makes a comeback by late afternoon, just in time for barbecues and fireworks.
Highs will hit 28°C, with a humidex pushing the feel to 33°C. Winds will sweep in from the northwest at 20 km/h, helping clear the air for evening celebrations. Overnight skies remain clear with a pleasant low of 16°C.
Midweek Outlook: Picture Perfect
Wednesday is shaping up to be textbook summer: sunny and 28°C. Wednesday night will dip to 15°C, followed by a partly sunny Thursday with a 30% chance of showers and a high of 25°C — so maybe keep the patio plans, just have a backup umbrella.
What to Wear?
Think “July smart”: breathable, light-coloured fabrics, a hat, and SPF are essentials today and tomorrow. For the evening, you might want to have a rain shell or light jacket handy — especially if you’re planning to catch fireworks.
Toronto Weather Trivia: Fireworks and Thunderstorms?
Fun fact: In Toronto’s history, several Canada Day celebrations have faced interruptions due to late-day thunderstorms — heat and humidity are a recipe for unstable air! Be sure to check conditions before heading to a viewing area.
