Sunny and Hot with Humidex Near 35°C

Today in Montréal, you’ll experience a warm and sunny day, with temperatures reaching a high of 30°C. With the humidex, it will feel even hotter, closer to 37°C. Winds will pick up from the southwest at 20 km/h, adding a bit of a breeze to the otherwise toasty day. The UV index is quite high at 7, so make sure to wear sunscreen if you’re spending time outdoors.

Evening Showers and Thunderstorms

Tonight, clouds will roll in, bringing showers and a risk of thunderstorms starting late in the evening. The temperature will drop to 19°C overnight, and the winds will continue from the southwest, gusting up to 40 km/h.

Cooler and Rainy Midweek

Wednesday will see a significant cool-down, with temperatures peaking at 22°C and showers likely throughout the day. The rain will taper off by the evening, leading to clear skies and a low of 11°C overnight. Thursday and Friday will be sunny with highs of 22°C and 25°C, respectively, though showers are expected to return on the weekend.

Wardrobe Suggestions and Weather Trivia

For today, light, breathable clothing is a must to stay cool in the heat, and don’t forget your sunglasses and sunscreen. Later tonight, you’ll want to keep an umbrella handy as the rain and thunderstorms move in.

Weather Trivia: Montréal’s humidex today will make it feel nearly 37°C—quite a jump from the average August high of 23°C. Enjoy the warmth, but be prepared for a cooler and rainier midweek!