Winter Weather Forecast 2024 2025 Ontario. This budding la niña could have some effects on canada’s weather in the season ahead. A winter of big freezes and heavy snowfall will be centered in ontario and eastern manitoba, while most of the rest of the country will get some relief and reprieve from snow shoveling and.

Watch | ontario’s 2024 winter forecast: Snowfall will be below average in the east and above average in the west.