This month-by-month fall forecast has revealed details about the season for each province. So, if you're wondering when Canada's weather will shift from sunny and warm to snowy and cold, here's what you need to know. The long-range forecast from the Old Farmer's Almanac includes not just monthly breakdowns but also weekly breakdowns. That means you can find out exactly when it will be warm, rainy, snowy, and cold during autumn. Let's get into the monthly fall forecast for all of the provinces...