According to the National Center for Hydro-Meteorological Forecasting, tomorrow (March 20), the Northern and North Central regions will have rain in some places, especially in the Northwest region, in the late afternoon and evening, there will be showers and thunderstorms in some places; sunny in the afternoon. Cold at night and morning.
The Central Central region will have rain in some places. The North is cold, from March 21 it will be cold at night and in the morning.
Other areas will have showers and thunderstorms in some places in the evening and at night; sunny during the day. On March 20, the Southeast region will have hot weather with the highest temperature commonly from 35-36 degrees Celsius, some places above 36 degrees Celsius, the lowest humidity commonly 50-55%.
The forecast temperature may be 2-4°C different from the actual outdoor temperature, or even higher if there are heat-absorbing surfaces such as concrete and asphalt.
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: 14-16 degrees Celsius Highest temperature: 21-23 degrees Celsius
Cloudy, no rain, sunny in the afternoon. Northeast wind level 2-3. Cold weather.
Northwest
Lowest temperature: 13-16 degrees Celsius, some places below 10 degrees Celsius Highest temperature: 18-21 degrees Celsius; some places above 21 degrees Celsius
Cloudy, with showers and thunderstorms in some places. Light wind. Cold, some places are very cold, very cold.
Northeast
Lowest temperature: 13-16 degrees Celsius, some places in high mountains below 10 degrees Celsius Highest temperature: 20-23 degrees Celsius, some places in high mountains below 17 degrees Celsius
Cloudy, with rain in some places, sunny in the afternoon. Northeast wind level 2-3. Cold weather, mountainous areas have severe cold.
Thanh Hoa to Hue
Lowest temperature: 14-17 degrees Celsius Highest temperature: 19-22 degrees Celsius
Cloudy, some rain in the North; scattered rain in the South. North to northwest wind level 3-4. Cold weather.
Da Nang to Binh Thuan
Lowest temperature: North 20-23 degrees Celsius; South 23-25 degrees Celsius Highest temperature: North 23-26 degrees Celsius; South 27-30 degrees Celsius
The North is cloudy, with rain, showers and thunderstorms in some places; the South is cloudy, with showers and thunderstorms in some places. Northeast wind level 3-4, coastal areas have gusts of level 6. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Central Highlands
Lowest temperature: 16-19 degrees Celsius Highest temperature: 26-29 degrees Celsius, some places above 29 degrees Celsius
Cloudy, sunny during the day, showers and thunderstorms in some places in the evening and at night. Northeast wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Southern region
Lowest temperature: 23-26 degrees Celsius Highest temperature: 31-34 degrees Celsius, some places above 35 degrees Celsius
Cloudy, sunny during the day, hot in some places, showers and thunderstorms in some places in the evening and at night. Northeast wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.