Westlock residents can look forward to pleasant late-summer weather this week, with Environment Canada predicting a mix of sun and cloud, daytime highs in the low to mid-20s, and only a slight chance of thunderstorms. The forecast for the week of August 16-23, 2026, shows temperatures slightly above the seasonal normal for mid-August, making it ideal for outdoor activities.
According to Environment Canada, Monday is expected to reach a high of 22°C with a humidex of 25 and a moderate UV index of 5. Overnight, there is a 30 percent chance of showers with a risk of a thunderstorm, but conditions are expected to clear by morning.
Tuesday will be sunny, with fog patches dissipating early in the morning and a high of 25°C. The trend continues through much of the week, with daytime highs expected to reach 23 to 26°C, which is slightly above the August normal maximum of 22°C. Overnight lows will range from 8 to 14°C, mostly above the seasonal norm of 8°C.
The most notable weather event is a higher chance of showers on Sunday, August 23, when the forecast calls for a 60 percent chance of showers and a high of 20°C. Environment Canada has not issued any weather alerts for the Westlock area.
Current conditions observed at the Pibroch station at 11:00 AM Monday showed a temperature of 16.8°C, humidity at 74 percent, and light south winds at 7 km/h. Westlock, located roughly 85 km north of Edmonton, typically sees summer conditions from late June through September, with July being the warmest month. This week’s forecast is a typical late-summer pattern for central Alberta.
