Five Day Thunderstorm Forecast Issued For Entire Country

The Bangladesh Meteorological Department has announced that thunderstorm activity is expected to persist across various regions of the country over the next five days. According to the official weather bulletin issued on Monday, 15 June 2026, at 6:00 pm, a 120-hour outlook indicates that multiple divisions will experience light to moderate rain or thundershowers, accompanied by temporary gusty winds and lightning strikes. Furthermore, there remains a distinct possibility of moderately heavy to heavy rainfall occurring in isolated places throughout the country during this period, whilst national temperatures are projected to undergo minor fluctuations.

Providing details on the synoptic meteorological conditions, weather forecaster Afroza Sultana stated that an extension of a low-pressure trough stretches from Gangetic West Bengal to the Northwest Bay of Bengal. Simultaneously, the southwest monsoon is moderately active over Bangladesh and remains weak to moderate elsewhere across the North Bay of Bengal.

Daily Breakdown of the 120-Hour Weather Forecast

The meteorological agency provided a detailed 24-hour sequential breakdown of the expected weather patterns across the country starting from Monday evening:

• Monday, 15 June to Tuesday, 16 June (First 24 Hours): Light to moderate rain or thundershowers, alongside temporary gusty winds and lightning, are anticipated at many places across the Rangpur, Mymensingh, Chattogram, and Sylhet divisions. Similar conditions are expected at a few places over the Rajshahi, Dhaka, Khulna, and Barishal divisions. Isolated areas nationwide may witness moderately heavy to heavy downpours. Concurrently, a mild heatwave is sweeping over the districts of Rajshahi, Pabna, Jashore, Chuadanga, Kushtia, and Khulna, which is expected to persist. Day temperatures across the country may rise slightly, whilst night temperatures are predicted to remain virtually unchanged.

• Tuesday, 16 June to Wednesday, 17 June (Second 24 Hours): The distribution of precipitation remains identical, with many areas in Rangpur, Mymensingh, Chattogram, and Sylhet divisions, and a few locations in Rajshahi, Dhaka, Khulna, and Barishal divisions experiencing thundershowers with gusty winds and lightning. Moderately heavy to heavy rainfall will continue in places. Both day and night temperatures across the country are forecast to experience a slight increase.

• Wednesday, 17 June to Thursday, 18 June (Third 24 Hours): The focus of the rainfall shifts slightly, with many places in the Mymensingh, Chattogram, and Sylhet divisions scheduled to receive rain. Conversely, a few places within the Rangpur, Rajshahi, Dhaka, Khulna, and Barishal divisions will experience temporary gusty winds, lightning, and light to moderate showers. The threat of heavy falls in isolated areas remains constant. Daytime temperatures across the country are expected to fall slightly, whilst nocturnal temperatures will stay mostly steady.

• Thursday, 18 June to Friday, 19 June (Fourth 24 Hours): The prevailing system will bring thundershowers to many areas of the Rangpur, Mymensingh, Chattogram, and Sylhet divisions, and to a few spots within Rajshahi, Dhaka, Khulna, and Barishal divisions. Heavy rainfall risks persist in certain areas, whilst both day and night temperatures are expected to show no significant changes across the country.

• Friday, 19 June to Saturday, 20 June (Fifth 24 Hours): The final 24 hours of the current outlook indicate that rain or thundershowers will impact many places across the Rangpur, Rajshahi, Mymensingh, Chattogram, and Sylhet divisions. Concurrently, a few places in the Dhaka, Khulna, and Barishal divisions will experience similar weather conditions. Moderately heavy to heavy rain remains possible nationwide, and both day and night temperatures are expected to register a slight decrease.

The Bangladesh Meteorological Department concluded its bulletin by noting that the underlying trend indicates a potential increase in the propensity and intensity of rainfall across the country beyond the conclusion of this designated five-day period.