Environment Canada has ended a heat warning for southern Ontario.
The weather agency initially issued the warning on August 8, with temperatures pushing 35 C (95 F) and humidex values at 40 C or above.
Sunday is expected to see a return to more seasonably warm conditions along with lower humidity.
Chatham-Kent, Sarnia-Lambton, Windsor-Essex, London-Middlesex and Midwestern Ontario were all under the hear warning until around 10:30pm Saturday night.