Colder weather on the horizon for Montreal

A ghostly reminder that despite the warm sunshine this weekend, it is October and the days are getting shorter and cooler. Halloween is just around the corner followed by you know what! (ValleyWX)

Most of eastern Ontario and southern Quebec have been enjoying a near perfect fall weather with abundant sunshine and many days of above normal temperatures. This past holiday weekend felt more like late August than October. Highs were in the low 20's with very warm nights in the teens. A front crossed the region on Monday with some light showers, just a few millimetres of rain on L'Ile Perrot and with no apparent change in temperatures. This morning it is still mild at 12C with lots of fog around. A dense fog advisory is in effect for most of northern New York and Vermont with visibility under 1 mile (1.6km). If you are heading off island to the south of Montreal be aware of this fog, which should burn off by 10am or so. Otherwise look for one more sunny warm day before changes begin. A major pattern change is anticipated between now and months end with much cooler and wet weather on the way. The showers will arrive on Wednesday and be with us for the remainder of the week. The cooler air will arrive be the weekend.

Forecast models are hinting at a very cold end to October and start to November for most of the country. Snow is even possible across the Prairies with a hint of some snowflakes by the 10th of November here in the east. Time will tell, until then enjoy the weather and get your winter plans firmed up. My snow tires go on as always next week.