
Fall reality check descends on Atlantic Canada this week, but will be brief
Grab your hoodies and fall jackets, Atlantic Canada. Temperatures will take a bit of a dive by midweek, giving residents a reminder that fall is well underway, despite the recent warmth
With eyes focused on the tracks of Humberto and Imelda in the Atlantic Ocean, Canada's East Coast will be dealing with a different type of weather this week.
A temporary weather reality check is coming to Atlantic Canada, but don’t worry, it won’t last long.
Visit our Complete Guide to Fall 2025 for an in depth look at the Fall Forecast, tips to plan for it and much more!

A chilly, upper trough will descend across the area on Wednesday, infused with energy from Nunavut. The result? Daytime highs that will barely scrape into the double digits and single-digit overnight lows.
Coolest daytime highs in Atlantic Canada since?
While much of Eastern Canada is enjoying late-summer-like weather that will continue into the first week of October, parts of Atlantic Canada will be missing out.

Fall-like weather has been absent across much of Canada, so these high temperatures might come with a bit of sticker shock.
New Brunswick
Miramichi: Wednesday’s high: 12°C (Coldest high since May 25--8.9°C)
Fredericton: Wednesday’s high: 14°C (Coldest high since June 1--14.4°C)
Moncton: Wednesday’s high: 13°C (Coldest high since May 25--7.8°C)

SEE ALSO: Autumn can still produce intense hurricanes across the Atlantic
Nova Scotia
Halifax: Wednesday’s high: 15°C (Coldest high since June 1--15.0°C)
Sydney: Wednesday’s High: 13°C (Coldest high since May 26--9.8°C)

P.E.I.
Charlottetown: Wednesday’s high: 13°C (Coldest high since May 26--10.1°C)
Newfoundland
St. John’s: Thursday’s High: 8°C (Coldest high since May 26--4.8°C)
Gander: Thursday’s high: 9°C (Coldest high since May 25--4.3°C)
However, temperatures will quickly rebound for the weekend with warmer-than-normal conditions. Temperatures will be in the low- to mid-20s for the Maritimes and near 20 degrees for Newfoundland on Saturday, and in the teens Sunday.
Abundant sunshine is expected, but a system tracking across Quebec and into Labrador will bring rain to eastern Quebec, and northern Newfoundland Saturday night and into Sunday.
WATCH:How the Fujiwhara effect can send hurricanes spinning off course
Thumbnail courtesy of Getty Images.
Be sure to check back for the latest weather updates across Atlantic Canada