Daejeon, Sejong, and Chungnam provinces in South Korea are expected to experience clear weather on May 15th, accompanied by high temperatures ranging from 29 to 32 degrees Celsius. Residents should prepare for a heatwave during the daytime. Dense fog is anticipated to form in certain areas until morning, potentially impacting visibility. Drivers and commuters are advised to exercise caution due to reduced visibility conditions. The forecast indicates generally stable weather patterns for the region. Authorities have not issued specific warnings beyond advising vigilance regarding the fog and heat. This weather pattern is typical for this time of year, but the high temperatures are notable.