With parts of Sindh and Punjab gripped by a heatwave, Mohenjo Daro and Larkana reached 53 degrees Celsius, the highest in Pakistan.
Jacobabad recorded 52 degrees. The Met Office said this weather would persist for another five to six days.
Thatta was the only area in Sindh below 40 degrees over the weekend.
The Met Office predicted heatwave conditions in the plains for the next 24 hours, while coastal areas will experience hot and humid weather.
Karachi is expected to see temperatures surpass 40 degrees this week.
“Temperatures may rise to 40°C or above in Karachi on May 29 and 30,” said Chief Meteorologist Dr. Sardar Sarfraz. He added that temperatures would drop slightly in upper and central Sindh after May 27.
According to the Pakistan Meteorological Department (PMD), Khanpur recorded 50.2°C in South Punjab. Several other cities also experienced temperatures above 40°C.
Bahawalpur saw 48°C, Sargodha recorded 46°C, and Lahore reached 43°C on Sunday. This weather is expected to continue throughout the week.
Most districts in Khyber Pakhtunkhwa will remain dry and hot. Dera Ismail Khan recorded 44°C, the highest temperature in the province, while Bannu reached 43°C.
“Severe heat is expected in the southern districts,” a Met Office official told the Associated Press of Pakistan. “Daytime temperatures will be 2 to 5 degrees Celsius above normal in southern districts.”
The official also indicated the possibility of thundershowers in Upper Dir, Swat, Mansehra, and Kohistan.
Ministry of Climate Change spokesperson Muhammad Saleem Shaikh emphasized avoiding unnecessary heat exposure. He warned that the heatwave could be especially serious for children, the elderly, and those with weak immune systems.
He highlighted that pregnant women are at higher risk and advised against outdoor activities between 11 am and 3 pm, the hottest part of the day.
The Provincial Disaster Management Authority (PDMA) is taking measures to mitigate the effects of the heatwave. A PDMA spokesperson said water provision in Cholistan is being ensured 24 hours a day due to the heatwave.