First day of fall Monday

Sep 21, 2025 | 6:00 AM

Fall officially arrives on Monday.

The autumnal equinox will happen at 12:19 p.m. Alberta time on September 22.

The Old Farmer’s Almanac says that is when the sun cross the celestial equator, an extension of the Earth’s equator into space.

The Weather Network’s Fall Forecast is calling for above normal temperatures and near normal precipitation for all of Alberta.