"Mild heat wave is sweeping over Sylhet and Mymensingh divisions and the districts of Dhaka, Khulna, Kushtia, Faridpur, Tangail, Kishoreganj, Manikganj, Bogra, Sitakunda, Narayanganj and Nilphamari and it may abate from some places", said a met office forecast for the next 24 hours begins from 9am on Friday.
Day temperature may remain nearly unchanged over Rangpur and Rajshahi divisions.
Light to moderate rain or thundershowers accompanied by temporary gusty wind are likely to occur at most places over Dhaka, Khulna, Barisal and Chittagong divisions and many places over Rajshahi, Rangpur, Mymensingh and Sylhet divisions with moderately heavy to hefty falls at places over Southern part of the country.
The country's maximum temperature 36.8° recorded on Thursday and the minimum temperature on Friday was recorded 23.5° at Sitakunda. Maximum rainfall 19mm recorded for the last twenty-four hours till 6am on Friday.
A low-pressure area has formed over Northeast Bay and the adjoining area. The axis of the monsoon trough runs through Haryana, Uttar Pradesh, Bihar, West Bengal, Center of the low to Assam across the southern part of Bangladesh.
Monsoon is fairly active over Bangladesh and moderate to strong elsewhere over North Bay.