Environment Canada has issued heat warnings for Edmonton and most of central Alberta, with sweltering temperatures expected to continue until Thursday.
Although temperatures will cool mid-week, the region could see hot temperatures again a few days later.
"Temperatures will cool on Thursday as a cold front moves through, with heat returning again for the weekend," says the warning issued Wednesday morning.
Edmonton will see daytime highs around 30 C, combined with overnight lows in the mid-teens.
Environment Canada offers the following guidance for residents and visitors to keep safe from heat stroke or heat exhaustion:
Reschedule outdoor activities to cooler hours of the day.
Spend time in cooled indoor spaces where possible.
Drink plenty of water and other non-alcoholic, non-caffeinated beverages to stay hydrated.
Check for your children or pets before you get out of your vehicle. Don't leave any person or pet inside a closed vehicle for any length of time.
Heat warnings are issued when very high temperature conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.
As of Wednesday, the following areas are under a heat warning:
Airdrie - Cochrane - Olds - Sundre
Bonnyville - St. Paul - Cold Lake - Lac La Biche
Brooks - Strathmore - Vulcan
Cardston - Fort Macleod - Magrath
City of Calgary
City of Edmonton - St. Albert - Sherwood Park
Cypress Hills Provincial Park
Drayton Valley - Devon - Rimbey - Pigeon Lake
Drumheller - Three Hills
Fort Saskatchewan - Vegreville - Redwater - Smoky Lake
Hanna - Coronation - Oyen
Kananaskis - Canmore
Leduc - Camrose - Wetaskiwin - Tofield
Lethbridge - Taber - Milk River
Lloydminster - Wainwright - Vermilion - Provost
Medicine Hat - Bow Island - Suffield
Okotoks - High River - Claresholm
Red Deer - Ponoka - Innisfail - Stettler
Spruce Grove - Morinville - Mayerthorpe - Evansburg
Westlock - Barrhead - Athabasca