Westlock, Alberta will enjoy warm, sunny conditions to start the week, but a shift toward rain and cooler temperatures is expected by Thursday, according to Environment Canada. The change could bring an end to late-summer outdoor activities for residents.
On Tuesday, September 1, the forecast calls for sunny skies and a high of 25°C with a humidex of 28, making it the warmest day of the week. Wednesday is expected to see increasing cloud cover and a 60 percent chance of showers overnight.
By Thursday, rain is likely with a high of just 17°C, marking an 8-degree drop from Tuesday. Periods of rain are expected to continue through Thursday night. Friday should see clearing skies, but temperatures will remain cooler with a high of 19°C.
The unsettled pattern brings a risk of additional evening and overnight precipitation as the week winds down. No weather alerts are currently in effect for the Westlock area, and the forecast was issued at 4:00 p.m. MDT on Monday, August 31, 2026.
Historically, August and September tend to combine the warmest temperatures with the lowest rainfall for Westlock, which makes the incoming rain somewhat unusual. The Environment Canada forecast suggests residents should plan outdoor activities for early in the week before conditions change.
