A low pressure area has formed over the Equatorial Indian Ocean and adjoining southeast Bay of Bengal.
It is likely to move west-northwestwards and intensify, according to the latest Met ofocr bulletin.
Meanwhile, the ridge of Sub-continental high extends up to Bihar and adjoining areas, influencing the prevailing weather pattern over Bangladesh.
Weather may remain mainly dry with a temporary partly cloudy sky over the country.
Night and day temperatures may rise slightly across Bangladesh.