Chestermere, Alberta is set to trade this week’s stormy weather for a stretch of sunny, warm days. Environment Canada reports no active weather alerts for Chestermere or Rocky View County as of Monday, August 17, 2026, with cloudy skies at 13.2°C and light northeast winds at 7 km/h.
The forecast calls for a rapid warm-up. Highs are expected to reach 25°C on Monday, then climb to 30°C on Tuesday and Wednesday. Thursday will see a mix of sun and cloud with a high of 27°C, followed by highs near 29°C on Friday. Seasonal normals for this time of year are around 25°C. The Weather Network predicts a 40% chance of showers and risk of a thunderstorm Monday afternoon, with a high of 24°C Monday, 26°C Tuesday and 27°C Wednesday.
This shift follows a period of significant rainfall in late June and early July 2026, when a stalled low-pressure system brought 70 to 80 millimetres of rain to parts of Alberta, triggering flood warnings west of Calgary. Chestermere Lake water levels were also affected in late July when about 1,200 litres of oil spilled from a storage tank in southeast Calgary, prompting the Western Irrigation District to temporarily shut off water flow to the lake.
Environment Canada currently lists no alerts for the area, and the summer of 2026 has been warmer than normal across the province. Residents can expect ideal conditions for outdoor activities later this week, with warm, sunny days ahead.
