Southern Saskatchewan, including Regina and Moose Jaw, is under heat warnings as temperatures rise this week, with relief expected by Saskatchewan Day on Monday. Environment and Climate Change Canada (ECCC) issued moderate heat warnings for the region, citing persistent hot air through the weekend before a significant cooldown.

Heat warnings and temperature outlook

Global News meteorologist Peter Quinlan said the heat will intensify ahead of the August long weekend, peaking before a sharp drop in temperatures. "This hot air is going to stick around right through the week in many areas," Quinlan said. "We’re going to see a big cooldown by Saskatchewan Day Monday, with some areas dipping below seasonal averages."

Saskatoon, while not under an ECCC heat warning, will see daytime highs near 30 C this week, except for a chance of showers on Thursday. Overnight temperatures in the city are forecast to fall below 20 C each night, according to Environment Canada.

Air quality concerns from wildfire smoke

Wildfire smoke from blazes in British Columbia and the Pacific Northwest will continue to affect Saskatchewan’s air quality until late this week. Quinlan noted the smoke’s presence but did not specify its severity beyond its expected duration.

The Saskatchewan Health Authority (SHA) warned that extreme heat poses heightened risks for vulnerable groups, including seniors, young children, pregnant people, and those who are socially isolated or homeless. Outdoor workers and individuals spending extended time in the sun are also at increased risk of heat-related illness.

Safety measures and cooling resources

The SHA advised residents to stay hydrated, monitor indoor temperatures, and remain on lower levels of homes to avoid heat buildup. Keeping windows closed during peak heat can also help maintain cooler indoor conditions.

  • Regina has designated extreme weather spaces for residents seeking relief from the heat. A list of available locations is posted on the city’s website.
  • Saskatoon activates its extreme heat and air quality emergency response plan when temperatures exceed 30 C for more than two days or when poor air quality persists. Cooling spaces open under this plan.

Residents are encouraged to check local forecasts and follow guidance from health and municipal authorities as conditions evolve. The shift to cooler temperatures by Saskatchewan Day may bring additional changes to watch for.