St. Paul, Alberta is in for a warm, sunny stretch to start the week, with temperatures climbing well above the September norm before a sharp cooldown arrives. Environment Canada‘s forecast calls for mainly sunny skies on Monday with a high of 27°C, and Tuesday will see more sunshine with a high of 23°C.
Those temperatures are about 13 degrees above the normal September high of 14°C for the St. Paul area. The unseasonable warmth offers a final window for outdoor activities and fall chores before conditions change mid-week.
By Wednesday, a mix of sun and cloud will bring a high of 18°C, marking the start of a cooling trend. Rain is expected on Friday with a high of just 12°C. Overnight lows will drop to 1°C by Saturday night.
Environment Canada’s forecast represents an unusually warm spell for late September in northeastern Alberta. The agency’s seasonal outlook for fall 2026 also points to above-normal temperatures across northern Alberta.
