2025-Nov-07
Winter Forecast for Georgian Bay: A Preview
The Old Farmer’s Almanac is predicting a “classic Canadian winter” for southern Ontario in 2025-2026, marked by deep freezes, frequent snowfalls, and powerful storms. While some forecasts suggest milder-than-average temperatures for most of Canada, Southern Ontario may experience a mix of conditions, including:
- Above-average snowfall, especially in eastern and southern areas
- Frequent snowstorms and icy conditions, with lake-effect snow possible due to warm Great Lakes water
- Brief thaws amidst prolonged cold snaps
- Ontario is expected to see 15-20 significant snow events, including 5-8 major storms in Southern Ontario, with a possibility of multi-day storms
- Increased risk of ice storms due to fluctuating temperatures
Expect significant snow events, especially between December and February, potentially including multi-day storms and snow squalls due to warm Great Lakes water. January 2026 is predicted to be particularly stormy and frigid.
Key drivers and influences:
- La Niña: a weak La Niña is a key driver, which typically alters the jet stream to bring cooler conditions to Western Canada and an active storm track to eastern Canada
- Polar vortex: the polar vortex potentially shifting south may bring Arctic air and increasing cold and snowfall risk
- Warm Great Lakes: current warmer-than-average Great Lakes temperatures combined with cold air can lead to intense lake-effect snow
As conditions fluctuate this winter, lake ice conditions may be unpredictable. Always be cautious when venturing onto frozen lakes, as warm Great Lakes water and brief thaws can weaken ice thickness and create hidden hazards. Always check local conditions and follow safety guidelines before heading out onto the ice.
See the almanac winter forecast here.