As Dhaka once again topped the list of cities worldwide with the most polluted air, light rain brought some relief for the city dwellers this morning (March 19, 2023).  Bangladesh Meteorological Department (BMD) has predicted rain or thunder showers accompanied by temporary gusty or squally wind at a few places over Rangpur, Rajshahi, Mymensingh, Khulna and Sylhet divisions and at one or two places in Dhaka, Barishal and Chattogram divisions with hails in isolated places over the country in 24 hours till 6 pm today. Rain or thunder showers may continue for the next two days and temperature may rise within the next five days, the BMD said.  Read more: Rain brings relief from scorching heat The day temperature may fall slightly and night temperature may remain nearly unchanged over the country, it said.  A mild heat wave had been sweeping over the country for the last few days.