According to the National Center for Hydro-Meteorological Forecasting, tomorrow (March 21), the Northern and North Central regions will have rain in some places at night, fog in some places in the early morning, and sunny days. Cold at night and morning.
The Central Central region will have rain in some places. The North will have cold nights and mornings. Other areas will have showers and thunderstorms in some places in the evening and at night; sunny during the day. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Tomorrow, the Southeast will continue to be hot and sunny, with the highest temperature commonly 35-36 degrees Celsius. The lowest relative humidity is commonly 50-55%.
People and tourists need to be on guard against the risk of exhaustion and stroke due to heat stroke when exposed to high temperatures for a long time.

Hanoi
Lowest temperature: 16-18 degrees Celsius Highest temperature: 25-27 degrees Celsius
Cloudy, no rain at night, fog in some places in the early morning, sunny during the day. Northeast to east wind level 2-3. Cold at night and morning.
Northwest
Lowest temperature: 13-16 degrees Celsius, some places below 12 degrees Celsius Highest temperature: 24-27 degrees Celsius, some places above 27 degrees Celsius
Cloudy, some rain at night, some fog in the early morning, sunny during the day. Light wind. Cold at night and morning.
Northeast
Lowest temperature: 15-18 degrees Celsius, high mountainous areas below 12 degrees Celsius Highest temperature: 24-27 degrees Celsius
Cloudy, some rain at night, some fog in the early morning, sunny during the day. Northeast to east wind level 2-3. Cold at night and morning.
Thanh Hoa to Hue
Lowest temperature: 14-17 degrees Celsius Highest temperature: 23-26 degrees Celsius
The North is cloudy, with rain in some places at night, fog in some places in the early morning, and sunny during the day; the South is cloudy, with rain in some places. North to northwest wind level 2-3. Cold at night and morning.
Da Nang to Binh Thuan
Lowest temperature: North 18-21 degrees Celsius; South 22-24 degrees Celsius Highest temperature: North 24-27 degrees Celsius, South 28-31 degrees Celsius
The North is cloudy, with rain in some places; the South is cloudy, no rain at night, sunny during the day. Northeast wind level 2-3.
Central Highlands
Lowest temperature: 16-19 degrees Celsius Highest temperature: 26-29 degrees Celsius
Cloudy, showers and thunderstorms in some places in the evening and at night, sunny during the day. Northeast wind level 2-3.
Southern region
Lowest temperature: 24-27 degrees Celsius Highest temperature: 31-34 degrees Celsius; in the East 34-36 degrees Celsius
Cloudy, showers and thunderstorms in some places in the evening and at night; sunny during the day, especially in the East. Northeast wind level 2-3.