However, the PMD has ruled out chances of any heatwave in the country.
A depression in Arabian Sea can block the city's soothing sea breeze, causing hot weather by pushing mercury upward, according to weather experts.
Chief meteorologist officer Sardar Sarfraz said that the weather in Karachi was likely to improve from Friday.
Pakistan Meteorological Department (PMD) officials said that the moderate heatwave-like conditions are likely to continue in Karachi for the next two days.
Scientists in Antarctica have recorded a new record temperature of 20.75 degrees Celsius (69.35 Fahrenheit), breaking the barrier of 20 degrees for the first time on the continent
The Pakistan Meteorological Department (PMD) in its weather report has predicted that the threshold of minimum temperature in Karachi will be further dropped between 08-10 Celsius on Thursday (tomorrow).
After all-time temperature records were smashed in Belgium, Germany and the Netherlands on Wednesday, Britain and the French capital Paris
By the year 2050, London's climate will resemble Madrid's today; Paris will be more like Canberra; Stockholm like Budapest and Moscow like Sofia