Kolkata: The Regional Meteorological Centre in Alipore on Thursday predicted moderate to heavy rainfall in all the South Bengal districts in the next 48 hours while North Bengal may receive some scattered rainfall.According to the weather office prediction, North 24-Parganas, West Midnapore and the coastal districts of South 24-Parganas and East Midnapore are expected to receive heavy rainfall on Friday and Saturday respectively. There may some thundershowers and lightning in these districts in the evening hours. Also Read – Bengal family worships Muslim girl as Goddess Durga in Kumari PujaA MeT official said a low-pressure trough has formed over Andhra Pradesh-Odisha region which will bring about rainfall in South Bengal districts. However, the amount of rainfall in North Bengal will be reduced, barring a few scattered pockets. “A low-pressure trough formed over the coastal areas of Andhra Pradesh-Odisha will cause a moderate to heavy rainfall in the South Bengal districts bringing temporary relief from the scorching heat. The humidity level that has been prevailing in the city and other adjoining districts may slightly go down,” a weather official said. Also Read – Bengal civic volunteer dies in road mishap on national highwayThe city’s sky mostly remained cloudy on Thursday but the high humidity level continued to haunt throughout the day. There was scattered rainfall in some of the northern and southern fringes of the city and also the suburbs in the afternoon but it failed to bring the mercury down. The entire South Bengal is still reeling under rain deficit in the Monsoon season, projecting a deficit of around 60 percent in the current month.