North American Farmers face a summer of extreme heat, localized downpours, and growing uncertainty as an unusually strong El Niño develops.
The past few weeks have already been crazy for agriculture weather wise, with more to come.
Nearly 2,000 severe wind reports were recorded across the United States over the past three days, with the most widespread impacts stretching from the central Plains through the Midwest and into the Northeast.
In the Canadian Prairies, large hailstorms swept across parts of Saskatchewan and Manitoba, causing significant crop damage in affected agricultural regions.
Farmers across much of North America are entering a weather pattern that could prove even more challenging to navigate, with expanding heat, highly localized storms, and continued uncertainty over precipitation during the coming weeks according to Nutrien's Eric Snodgrass in his weekly Weather Intelligence Report.
The dominant feature shaping the forecast is a broad upper-level ridge expected to settle across the Four Corners region and southern Plains. Atmospheric analysts indicate the system could grow into one of the most significant summer ridges observed in recent decades, potentially reaching near-record intensity by mid-July.
Unlike more compact ridges that remain confined to a specific region, this pattern is forecast to remain broad and flexible, periodically extending into the central and southern Plains. The result is likely to be widespread above-normal temperatures across a large portion of the United States, with some locations experiencing prolonged heat.
Parts of the southern Plains could see temperatures climb well into the triple digits Fahrenheit during the next week, while heat is expected to remain entrenched west of the Mississippi River for much of the summer.
Localized Storms Will Create Winners and Losers
Despite the expanding heat, rainfall will not disappear entirely.
Snodgrass says he expects North America to enter a stagnant, low-atmospheric-momentum pattern that encourages scattered thunderstorm development rather than large, organized storm systems. These conditions often produce highly localized rainfall events, where one community receives significant precipitation while neighbouring areas remain dry.
Early in the forecast period, a storm corridor is expected to extend across portions of Montana, the Dakotas, the Red River Valley, Minnesota, Wisconsin, Michigan's Upper Peninsula, and into Ontario. Additional isolated thunderstorms are also anticipated across parts of the southern United States.
For agriculture, this type of weather pattern can create sharp differences in crop conditions over relatively short distances.
Some producers may receive timely moisture that supports crop development, while others could face increasing dryness despite nearby rainfall reports.
Because summer forecasting models often struggle with localized thunderstorm development, Snodgrass advises daily monitoring of radar and short-term forecasts will be especially important.
Meteorologists caution that identifying emerging flash drought areas may become difficult given the abundant moisture currently present in the lower atmosphere.
Even so, rainfall distribution is expected to remain inconsistent through mid-July.
Storm Activity May Expand During Mid-July
Looking further ahead, forecast models suggest the weather pattern could evolve between July 14 and 20.
As the ridge shifts toward the Four Corners region, storm opportunities may increase across portions of the Intermountain West. Meanwhile, so-called "ridge-rider" storm systems could develop along the northern edge of the heat dome and track through parts of the Midwest.
The eastern United States may also experience increased precipitation chances during this period.
While confidence in exact rainfall locations remains low, the overall environment appears supportive of continued thunderstorm development in several regions. For crop producers, that means field-level weather conditions could vary dramatically throughout the growing season.
Record-Pace El Niño Emerges as Major Global Influence
Beyond the next two weeks, attention is increasingly turning toward the rapid development of El Niño conditions in the Pacific Ocean.
Meteorologists describe the 2026 event as one of the fastest and strongest El Niño developments on record. Recent European Centre for Medium-Range Weather Forecasts (ECMWF) ensemble guidance suggests ocean temperature anomalies could exceed 3°C in some scenarios, placing the event in historically significant territory.
The event is expected to strengthen through autumn, with peak intensity projected during November and December before gradually weakening after the New Year.
Potential Agricultural Impacts Through Harvest and Winter
Seasonal outlooks suggest several important trends for agriculture.
Much of the Mississippi, Ohio and Missouri River basins are expected to experience above-average temperatures through the remainder of summer. At the same time, long-range guidance points toward improved storm opportunities in eastern regions and an active Southwest monsoon season.
Forecasters also note that parts of the central United States and southern Canada could trend drier if atmospheric patterns shift in a way that pushes the heat ridge farther north into Canada.
Looking toward harvest, weather models indicate the Midwest and Southeast may become wetter during late summer and autumn. If those projections verify, producers could face narrower harvest windows and greater challenges completing fall field operations.
Globally, weather concerns are emerging for several key agricultural regions, including portions of India, Southeast Asia, and the Amazon Basin, where drought risks may increase under the evolving El Niño pattern.
What Farmers Should Watch
For now, Snodgrass says the key weather story remains the interaction between expanding summer heat and highly localized rainfall.
The next two weeks will be strongly influenced by the position of the developing heat ridge and the amount of atmospheric momentum available to shift weather systems across the continent.
Producers are encouraged to pay close attention to local forecasts rather than relying solely on broad regional outlooks. With rainfall expected to remain scattered and uneven, conditions could change rapidly from one farm to the next.
The larger question remains whether the rapidly strengthening El Niño will continue on its current trajectory. If it does, its influence could extend well beyond this growing season, shaping harvest conditions, winter weather, and agricultural production around the globe in the months ahead.
Photo Credit: ECMWF