The Bangladesh Meteorological Department has forecast rain and thunderstorms for Dhaka and large swathes of the country over the next 24 hours, even as a mild heat wave continues to affect multiple districts, according to Dhakatimes24.
The latest bulletin, issued Wednesday evening for the period until 6 p.m. Thursday, indicates that many locations in Rangpur, Rajshahi, Dhaka, Mymensingh, and Sylhet divisions will experience light to moderate rain accompanied by temporary gusty winds. Isolated places in Khulna, Barishal, and Chattogram divisions are also expected to see similar conditions.
Heavy Rainfall Risk in Northern and Northeastern Divisions
Forecasters highlighted a higher risk of moderate to heavy downpours in parts of Rangpur, Mymensingh, and Sylhet divisions. The earlier outlook, covering Tuesday evening through Wednesday, had already flagged the possibility of heavy rain in pockets of Rangpur, Sylhet, and Chattogram divisions, alongside lighter precipitation across a broader area.
For the capital and its immediate surroundings, the short-term forecast through Wednesday evening calls for partly to temporarily cloudy skies with a chance of rain or thunderstorms. Winds from the south or southwest are expected at 8 to 12 kilometers per hour, and daytime temperatures may dip slightly.
Mild Heat Wave Persists Across Central and Southern Districts
At the same time, a mild heat wave continues to move across Mymensingh and Sylhet divisions as well as over a long list of districts including Dhaka, Tangail, Manikganj, Kishoreganj, Rajshahi, Sirajganj, Rangpur, Nilphamari, Chandpur, Feni, Jashore, Chuadanga, Kushtia, Satkhira, Khulna, Barishal, and Patuakhali. The department noted that the heat wave may weaken in some areas.
In Bangladesh, a "mild heat wave" is declared when maximum temperatures reach 36–38 degrees Celsius. The combination of elevated heat and humidity — often referred to locally as "vapor heat" — raises the heat index and can increase health risks, particularly for outdoor workers, the elderly, and children.
What the Forecast Means for Daily Life
The overlapping alerts — rain and thunderstorms across most divisions alongside a lingering heat wave — create a complex situation for residents. Sudden downpours can disrupt transport and drainage in urban centers like Dhaka, while lightning poses a safety hazard in open areas. Meanwhile, the persistent heat and humidity elevate the risk of dehydration and heat-related illness.
Authorities typically advise the public to stay updated on weather bulletins, avoid unnecessary travel during severe thunderstorms, seek shelter during lightning, and drink plenty of fluids during heat wave conditions. Farmers in the affected northern and northeastern districts should also monitor field conditions, as heavy rain at this time of year can impact standing crops.
Why This Matters for Bangladesh and the Diaspora
Weather patterns in September mark the tail end of the monsoon season, when the interplay of residual heat and moisture often produces intense, localized storms. For the large Bangladeshi diaspora, especially those with family in the listed districts, the forecast signals a period of heightened vigilance. Remittance-sending relatives often track such alerts to check on loved ones in flood-prone or lightning-vulnerable areas.
Dhakatimes24 reported that the Meteorological Department will continue to issue updated bulletins as conditions evolve. Residents are encouraged to follow official channels for real-time warnings.