Quebec is set to experience its first wave of summer heat and humidity of the year starting Monday, coinciding with National Patriots’ Day. This shift follows a relatively comfortable weekend, marking a sharp transition in seasonal conditions.
A warm front arriving from Colorado is expected to drive temperatures upward, with a forecast of 29 degrees on Monday and 31 degrees on Tuesday. Tuesday is projected to be the hottest day of the week.
In the southern part of the province, the humidex is expected to reach 34 on Monday and could climb to 35 on Tuesday.
Temperature Trends and Records
Marilyn Ferland, a meteorologist with Environment and Climate Change Canada (ECCC), stated in an interview with Agence QMI that while these temperatures are significantly above seasonal norms, they are expected to remain below historical records.
The warm front may also bring precipitation and the possibility of thunderstorms. Showers are anticipated in southern Quebec throughout Monday and into the night between Monday and Tuesday.
Regional Rainfall Forecasts
Rainfall totals for Montreal are projected to be between 5 and 10 millimeters, while Quebec could receive more than 10 millimeters. Ferland noted that these amounts could increase if thunderstorms develop.
Precipitation is expected to move toward the east of the province, specifically affecting Gaspésie and the Côte-Nord. In these regions, rain is likely to arrive between Tuesday night and Wednesday, with potential totals ranging from 30 to 40 millimeters.
Mid-Week Cooling Trend
The system responsible for the heat is expected to exit the south and west of the province starting Wednesday as it moves eastward. This transition should bring temperatures back to normal levels.
In Montreal, the temperature is expected to reach 32 degrees on Wednesday before dropping to 17 degrees on Thursday. Temperatures may then rise back to approximately 20 degrees toward the end of the week.
Starting Thursday, the forecast indicates sunny skies with few clouds and minimal precipitation.
Frequently Asked Questions
Which day is expected to be the hottest of the week?
Tuesday is projected to be the hottest day, with an expected temperature of 31 degrees.
How much rain is forecasted for Montreal?
Montreal is expected to receive between 5 and 10 millimeters of rain, though this could increase if thunderstorms occur.
What will the weather be like starting Thursday?
The sky is expected to be sunny with few clouds and little to no precipitation, with temperatures around 17 degrees on Thursday and rising to about 20 degrees by the end of the week.
How do you typically prepare your home and routine for the first sudden heatwave of the spring?
