Get Ready for Hot Weather: Week Begins with Possible 30°C Temps

As warmer weather approaches, Quebec is preparing for a taste of summer. The week ahead may bring temperatures close to 30°C, particularly on Tuesday, as a ridge of high pressure settles over the region.
Forecast Overview: Possible 30°C Temperatures This Week
Beginning early in the week, southern Quebec can expect maximum temperatures ranging between 25°C and 30°C. Montreal and Gatineau are likely to see highs of 28°C and 29°C on Monday. However, Tuesday will likely be the hottest day, with some areas potentially reaching their first 30°C mark of 2026.
Weather Conditions
According to meteorologist Alexandra Giroux, this increase in temperature results from warm air moving in from the United States. While the expectation is for a warm, sunny start to the week, there is also a risk of thunderstorms from Monday to Wednesday. These storms could introduce cloud cover and light rain, possibly preventing temperatures from soaring as high as initially forecast.
Statistical Context
- Typically, southern Quebec sees its first 30°C days in June.
- Gatineau experiences this temperature average around May 25.
- Montreal usually reaches 30°C by June 7.
- Over the past five years, 30°C has been recorded earlier on several occasions.
- In 2023, temperatures reached 30°C as early as April 13 in St-Bernard-de-Lacolle.
This warming trend may be an anomaly as temperatures are expected to decline again by Thursday, potentially dropping to the mid-teens in Montreal. Residents are advised to enjoy the brief period of warmth while it lasts, as cooler temperatures can return swiftly.




