Canada Long Weekend forecast
Ontario
A ridge will be present from Saskatchewan into the Great Lakes region allowing for warmer than normal temperatures to dominate for the weekend across most of Ontario. A few showers or storms will e possible Saturday as this ridge moves in with temperatures in the upper 20s being the story for the region all weekend long, with sunshine expected Sunday and Monday.
Atlantic Canada
For Atlantic Canada, troughing will be occurring ahead of the ridging in Ontario. A low-pressure area will form over Hudson Bay, and slide through the region bringing cooler than normal temperatures and widespread showers to Eastern Quebec and the Maritime Provinces for Saturday and Sunday, and to Newfoundland for Monday. Temperatures will be a good 5 degrees below average for highs. Expect temperatures to be in the upper teens and low 20s in the Maritimes and Low to mid teens in St. John’s.
West Coast of Canada
A mid-level Low over the Pacific northwest will gradually depart as A ridge over the Gulf of Alaska builds in leading to warmer than normal temperatures by Canada Day. A few showers are possible at the start of the weekend for Vancouver and the Interior, but sunshine will be present beginning Saturday, and lasting for most of the long weekend. Temperatures will generally be in the low to mid 20s with upper 20s possible in the interior by Canada Day.
Prairie Provinces
Ridging will continue in the Prairie Provinces and allow very warm temperatures to exist in the southern parts of SK/AB/MB for Canada Day. Area of Low pressure should be well into northern Manitoba and no precipitation should impact your Canada Day plans for the southern Prairie Provinces.
Authors: Lance Quackenbush and Francis Lavigne-Theriault