Today (the 18th), which is Friday, will also widen the daily temperature difference.



You should be careful not to catch a cold. Today's morning in Seoul will start off with a chilly temperature of 6 degrees and rise to 17 degrees during the day, and it will continue to be mild until the weekend, which will continue to exceed normal temperatures.



Air quality will be generally good across the country today.



However, in southern Gyeonggi, North Chungcheong, and Daegu, where the atmosphere is stagnant, the air will be temporarily cloudy in the morning.



The sky will be mostly clear across the country today, but there will be thick fog in the central and northern Gyeongbuk inland until the morning, and there will be places where the water freezes.



The temperature this morning will be similar to yesterday at 6 degrees in Seoul, 5 degrees in Gwangju, and 3 degrees in Daegu, and the highest daytime temperature will be 17 degrees in Seoul and 21 degrees in Busan, slightly higher than yesterday.



This weekend, the days will be mostly mild, and it will rain in Jeju Island.



(Im Eun-jin weather caster)