The Bangladesh Mete-orological Department says temperatures will start rising again from tomorrow (Sunday) and a heatwave is expected from May 15 and continue for the rest of the month. "But temperatures will start to increase slightly from Sunday." Bangladesh saw a heatwave lasting 37 consecutive days from March 31 to May 6, the longest in its recorded history. The forecast said rain would start on May 2 and spread nationwide before the maximum temperature across the country dropped below 40 degrees Celsius from May 7. Scattered parts of the country, including Sylhet, Faridpur, Dinajpur, and Mongla, saw a bit of rain or thundershowers as well.