According to the National Center for Hydro-Meteorological Forecasting, the weather forecast from the night of May 15 to May 17 in the Northwest and Viet Bac regions: scattered showers and thunderstorms, locally heavy rain. (rain will be concentrated from late afternoon and night).
Other areas of the North will have scattered showers and thunderstorms, especially in coastal areas on the night of May 15 and the morning of May 16, there will be scattered showers and thunderstorms in some places.
Weather in the Central region: showers and thunderstorms in some places in the evening and at night, sunny during the day.
Central Highlands and Southern region: showers and thunderstorms in some places in the evening and at night, especially in the Central Highlands and Southern region, in the evening and at night of May 15, there will be scattered showers and thunderstorms; sunny day, especially in the South, there will be local heat.
People and tourists need to be on guard against thunderstorms that can cause tornadoes, lightning, hail and strong gusts of wind.

Weather forecast for tomorrow in Hanoi
Lowest temperature: 24-26 degrees Celsius
Highest temperature: 32-34 degrees Celsius
Cloudy, scattered showers and thunderstorms, sunny days. Light wind.
Weather forecast for tomorrow in the Northwest region
Lowest temperature: 22-25 degrees Celsius, some places below 22 degrees Celsius
Highest temperature: 27-30 degrees Celsius; South of Son La and Hoa Binh 31-34 degrees Celsius
Cloudy, scattered showers and thunderstorms, locally heavy rain (concentrated in the evening, night and morning). Light wind.
Weather forecast for tomorrow in the Northeast region
Lowest temperature: 23-26 degrees Celsius
Highest temperature: 30-33 degrees Celsius, some places above 33 degrees Celsius
Cloudy, scattered showers and thunderstorms. In particular, the Viet Bac and coastal plains will have scattered showers and thunderstorms, with some places having heavy rain (concentrated in the evening, night and morning). Southeast wind level 2-3.
Weather forecast for tomorrow in the area from Thanh Hoa to Hue
Lowest temperature: 23-26 degrees Celsius
Highest temperature: 30-33 degrees Celsius, some places above 33 degrees Celsius
Cloudy, showers and thunderstorms in some places in the evening and at night, sunny during the day. Light wind.
Weather forecast for tomorrow in the area from Da Nang to Binh Thuan
Lowest temperature: 24-27 degrees Celsius
Highest temperature: 31-34 degrees Celsius, some places above 34 degrees Celsius
Cloudy, showers and thunderstorms in some places in the evening and at night, sunny during the day. Light wind.
Weather forecast for tomorrow in the Central Highlands
Lowest temperature: 20-23 degrees Celsius
Highest temperature: 30-33 degrees Celsius, some places above 33 degrees Celsius
Cloudy, scattered showers and thunderstorms at night; scattered showers and thunderstorms at night; sunny during the day. Light wind.
Weather forecast for tomorrow in the Southern region
Lowest temperature: 24-27 degrees Celsius
Highest temperature: 32-35 degrees Celsius, some places above 35 degrees Celsius
Cloudy, scattered showers and thunderstorms at night; scattered showers and thunderstorms at night; sunny during the day, some places are hot. Light wind.