Monday, September 08, 2025

Another stretch of dry weather ahead for southern Quebec

The Suburban, along with Tanguay, held our second annual Family and Pet Day in Cote St-Luc on Sunday. This was a rain date from August 24, when the threat for thunderstorms made it unsafe. Thankfully for the many in attendance, the rain held off this time, with the exception of a few menacing black clouds and gusty winds, along with an isolated sprinkle or two. (Valley Weather)

Strong high pressure has settled into southern Quebec on Monday morning, and will slowly drift southeast over the course of the upcoming week. This will result in another stretch of sunny and dry weather for our region. Temperatures have started off cool Monday morning, with many locations in the single digits, including 9C (48F) at Trudeau Airport. 

Montreal will warm to near 20C (68F) Monday and well into the middle 20's for the balance of the work week, with nothing but sunshine expected. The overnight period will feature clear skies, and cool temperatures, either side of 10C (50F).

The lack of precipitation this summer has resulted in drought conditions across many parts of southern Quebec, especially in the eastern portion of the province as well as Ontario and Atlantic Canada. (ECCC)

The next chance for rain will not come before the upcoming weekend. While the pleasant late summer weather is welcome by many, the area remains excessively dry. Large portions of Canada are actually in one stage or another of drought. In August, most of Quebec had below normal precipitation, with the deficit ranging from 25 to as much as 100 percent below the long-term average. The rain that has fallen in Montreal has often been too much at once, with too many days in between events.

We did manage a few millimetres of rain over the weekend, bringing Montreal up to 21.4mm for the month, but that amount remains below the long-term average to date for September. Southern Quebec needs a slow, soaking rain. Nothing is on the horizon at this point.

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