Environment and Climate Change Canada has Issued an Orange Level Heat Warning -June 30-July 3, 2026

Environment and Climate Change Canada has issued an Orange Level Extended Heat Warning for both North and South Durham. The Extended Heat Warning is expected to last until Friday July 3rd, possibly Saturday July 4th. The hottest days are expected to be Wednesday and Thursday, with maximum temperatures of 34 to 36 degrees Celsius.

While extreme heat can be harmful to everyone, health risks are greatest for infants and young children, people who are 60 and older, pregnant, live alone, take certain medications, lack secure housing, have an existing health condition, have limited resources, have limited physical mobility, or who work or exercise outside. Individuals who have a health condition or take certain medications should ask their doctor or pharmacist if these health conditions or medications might increase their health risk in the heat and follow the appropriate recommendations.

For more information on ways to keep cool, please visit durham.ca/heat or contact the Durham Health Connection Line at 905-668-2020 or 1-800-841-2729.