Environment Canada has issued a heat warning for Coaldale and the County of Lethbridge, with daytime highs expected to reach up to 34 degrees Celsius through Saturday, August 1. The warning, issued early Tuesday morning, July 28, 2026, comes as temperatures soar 6 to 8 degrees above the seasonal normal of 26 degrees Celsius.
The Environment Canada forecast shows highs of 33 degrees on Tuesday, 32 degrees on Wednesday and Thursday, 34 degrees on Friday, and 34 degrees on Saturday. Overnight lows will only dip to 12 to 15 degrees, offering limited relief from the heat. The forecast also notes local smoke in the area.
Residents are being urged to take precautions to stay safe. Alberta Health Services advises drinking plenty of water, avoiding prolonged outdoor activity during peak afternoon hours, and never leaving children or pets inside vehicles. People at greater risk include older adults, infants and young children, those who are pregnant, and individuals with pre-existing health conditions. Checking on neighbours who live alone or lack air conditioning is also recommended.
In southern Alberta, heat warnings are triggered when daytime highs of 32 degrees or warmer are expected for two or more consecutive days, with overnight lows staying at 16 degrees or warmer. The City of Lethbridge has an Extreme Temperature Response Protocol that opens cooling centres like the Lethbridge Public Library and Helen Schuler Nature Centre when warnings are in effect.
Temperatures are expected to moderate by Sunday, with a high of 27 degrees, and 24 degrees on Monday, bringing relief after a stretch of unusually hot weather for the region.
