Forecasters from the World Meteorological Organization are reporting increased chances that the global climate pattern known as El Niño will arrive by the end of summer. With it comes increased chances for hotter-than-normal temperatures in 2024. While there is not yet a clear picture of how strong the El Niño event will be or how long it might last, even a relatively mild one could affect precipitation and temperature patterns around the world. … El Niño is associated with warmer-than-normal ocean surface temperatures in the central and eastern tropical Pacific Ocean. In the United States, it tends to lead to rainier, cooler conditions in much of the South, and warmer conditions in parts of the North.