A fall season colder than average across Alberta
While Alberta enjoys the lingering warmth of July, a notable shift is approaching. According to the Farmers’ Almanac, the fall 2025 forecast suggests a cooler-than-average season ahead for Alberta and the wider Prairie region. The official start of autumn on Monday, September 22, 2025, could mark the beginning of frequent cold snaps, and by mid-October, wet snow may already make an appearance—especially in higher elevations.
The drop in temperatures will be accompanied by persistent rainfall, with precipitation expected to dominate the national weather pattern. Alberta, in particular, could experience its first widespread snowfalls by November, bringing a swift end to the mild conditions of late summer.
More unsettled skies across the country
Elsewhere in Canada, weather conditions will vary but remain equally unsettled. Along the Atlantic Coast, particularly in Newfoundland, the month of September will likely be wet and stormy, with the risk of a hurricane around the middle of the month. Meanwhile, Ontario and Quebec are forecast to face intense rainfall and thunderstorms throughout October.
The West Coast won’t be spared either—British Columbia is expected to be influenced by Pacific-driven weather systems, bringing frequent rain and cool conditions throughout the fall.
Chilly Halloween forecast for the Prairies
As Halloween approaches, those venturing outdoors in Alberta between October 28 and 31 may need to dress warmly. The Farmers’ Almanac predicts a pattern of “wet, then slow clearing” weather across the Prairie provinces—suggesting damp costumes and a chill in the air for trick-or-treaters and partygoers.
Fall 2025 is shaping up to be defined by frequent atmospheric shifts, as described by the Almanac: “a season of shifting skies and changing temperatures, with moments of calm nestled between bouts of rain, snow, and wind.” Their long-range outlook considers a variety of elements, including lunar influence, historical comparisons, and natural cycles—tools used to capture the complex weather rhythms across Canada.
As the leaves begin to turn, Alberta may soon be trading its summer sun for umbrellas and early snowflakes.
