According to the National Centre for Hydro-Meteorological Forecasting, Hanoi will endure one more day of extreme heat before thunderstorms will bring a sharp 10-degree drop tonight.

Hanoi faces sweltering heat with temperatures of around 40 degrees Celsius on June 1 and 2.
Hanoi will see mostly clear skies and sweltering heat today, June 2, with some areas hit by extreme conditions. Temperatures are expected to range from 37 to 39 degrees Celsius, potentially surpassing 40 degrees Celsius in specific locations.
The city will be mostly cloudy with occasional showers and possible thunderstorms from the night of June 2 to June 4. Highs will range from 31–33 degrees Celsius, while lows will commonly fall between 24-27 degrees Celsius.