A Super El Niño 2026 may be taking shape in the Pacific Ocean, and the agricultural and weather implications for the United States are significant. AccuWeather forecasters say El Niño is increasingly likely to develop this spring into early summer, with most indicators pointing toward at least a strong event. There is approximately a 15% chance it will reach the threshold for a full Super El Niño — a classification reserved for when sea surface temperature anomalies in the equatorial Pacific exceed 2.0 degrees Celsius above average, a level reached only a handful of times since 1950.
The most recent event at that scale was the winter of 2015 to 2016. AccuWeather Long-Range Forecaster Paul Pastelok said the sea surface temperatures are changing so quickly that El Niño could begin as early as June 2026, which would be unusually early since most events typically begin in the fall. NOAA’s Climate Prediction Center has placed a 61% probability on El Niño developing this spring into early summer, with a 25% chance of a very strong event by year’s end.
What Super El Niño 2026 could mean for the Corn Belt and Midwest this summer
For farmers in the central United States, the developing pattern carries the most directly relevant weather signal in years. AccuWeather Senior Meteorologist Chad Merrill said that in the United States, an El Niño pattern typically brings more rain to the Midwest and parts of the West during summer. He added that the Corn Belt specifically stands to benefit, with rainfall likely to be meaningful and the risk of drought significantly lower than it has been in recent seasons.
That contrast matters enormously given the supply pressures that have been driving up corn and soybean prices in 2026. A meaningful reduction in Midwest drought risk during the growing season could support yield recovery and ease input costs for farmers who have been operating under stress. For those tracking how weather patterns have been shaping agriculture across the U.S. this year, Agroinformacion has been covering how Mississippi River drought has been threatening spring fertilizer deliveries to the Corn Belt.
However, the picture is uneven across the country. Merrill noted the El Niño pattern will also likely produce extended periods of dry weather from the Gulf Coast to the East Coast, punctuated by heavy pockets of rain. That combination creates stress for cotton, peanut, and vegetable producers across the South who have already been dealing with difficult conditions in early 2026.
A Super El Niño brings big storm risk and snowpack relief in winter
By winter, the climate signal from a strong or Super El Niño 2026 becomes more pronounced. Merrill said El Niño tends to produce more rain than average from California across the southern tier of the United States and along the East Coast during winter months. That rainfall would be welcome in the western states, where a snow drought has already depleted water reservoirs and triggered water restrictions in some communities.
Pastelok emphasized that El Niño is not a storm itself but a large-scale climate driver that tilts the odds toward certain patterns. A strong to super El Niño can bring major storms to the West Coast and a strong southern storm track, rich with moisture from the Gulf and Atlantic, capable of producing powerful East Coast storms. The NOAA Climate Prediction Center is the primary source for monitoring how the event evolves in the months ahead.
Additionally, a marine heat wave developing separately off the West Coast could amplify summer impacts in California, producing spotty thunderstorms and potentially more meaningful rainfall from East Pacific tropical systems. Merrill noted that those same storms can also spark wildfires through lightning ignition, adding a dual-edged character to the summer forecast for the West.
Global temperatures linked to El Niño will peak in 2027, not 2026
While the pattern is developing now, its hottest global temperature effects will likely come later. Merrill explained there is typically a delay between when El Niño develops and when global temperatures peak. El Niño is expected to develop during 2026, but the most significant global temperature signal linked to it would more likely occur in 2027.
That delay is important for farmers and agricultural planners thinking about multi-year weather risk. A strong or super El Niño this year sets the table for what could be another year of elevated heat globally in 2027, with implications for crop yields, water availability, and growing season length across multiple regions. The full Super El Niño 2026 forecast and analysis was published by AccuWeather on April 9, 2026.