Bangladesh Meteorological Department (BMD) on Wednesday forecast rain or thunder showers accompanied by temporary gusty wind at most places over Chattogram division for the next 24 hours commencing from 6pm.
Rain may also occur at a few places over Barishal division and at one or two places over Sylhet division, it said.
Weather may remain mainly dry elsewhere over the country, BMD said.
About the synoptic situation, it said a trough of low lies over North Bay.
Night temperature may fall slightly over Dhaka, Mymensingh, Rangpur, Rajshahi and Khulna divisions and it may remain nearly unchanged elsewhere over the country.
Day temperature may remain nearly unchanged over the country.
Also read: Met Office forecasts rain, thunder showers