Volatile Weather Delays Corn and Soybean Plantings in South America

Heavy rains are wreaking havoc on Argentina’s farmland, leaving nearly 4 million acres at risk and delaying corn and soybean plantings in one of the world’s top grain export regions.

BUENOS AIRES, ARGENTINA (RFD-TV) — A shift in South America’s weather could shake up the crop outlook and help increase the competitiveness of U.S. grains in global trade markets.

Earlier in the week, the weather in Argentina and southern Brazil was trending drier, threatening soil moisture for winter wheat, corn, and first-season soybeans. Meanwhile, central Brazil was expected to see increased rain, easing dryness, but delaying soybean planting.

As of Thursday, heavy rains are wreaking havoc on Argentina’s farmland, and leaving nearly four million acres at risk. Central Buenos Aires is one of the world’s top grain-exporting regions. However, farmers are currently unable to access their fields, delaying soybean and corn plantings. Argentine farmers worry some land may remain idle for months, blaming years of under-investment in drainage and roads for worsening the impact.

Brian Hoops with Midwest Market Solutions told RFD-TV News that orders and cancellations will be worth watching in the weeks ahead. Hoops also said to keep an eye on weather conditions in Brazil, currently China’s top soybean supplier.

“We’re looking at China, not really buying a lot of soybeans—pretty good weather in South America – and yet, the market continues just to march higher,” Hoops explained. “We are in a tactical uptrend here for soybeans in the entire soy complex. That is giving us some strength from algorithmic-type trading on dips in the marketplace, to see if we continue to push higher. So we’re seeing a lot of strength in that, soybeans.”

Meteorologists link the pattern to a peaking La Niña, with conditions possibly normalizing early next year. Farmers will be watching closely, as this volatility could impact corn and soybean production across the continent.

Related Stories
Stay alert for trade announcements—especially border reopening timelines, tariff threats, and developments in Brazil’s export flows.
Margin Protection and the new MCO add county-level margin tools — with earlier price discovery, input cost triggers, and high subsidy rates — to complement on-farm risk plans for 2026.
Until a phased reopening is inked, plan for tighter feeder availability, firmer basis near border yards, and continued reliance on domestic and Canadian sources.
Set targets and use forwards, futures, or options to manage downside while preserving room for rallies.
Bangladesh’s buying surge offers temporary relief for U.S. farmers facing weaker Chinese demand, highlighting how global politics can reshape export outlets overnight.
Sen. Roger Marshall explains which types of beef are imported into the United States, how there’s room for new imports, and logical reasons for current high prices.

Marion is a digital content manager for RFD News and FarmHER + RanchHER. She started working for Rural Media Group in May 2022, bringing a decade of digital experience in broadcast media and some cooking experience to the team.

LATEST STORIES BY THIS AUTHOR:

USDA Undersecretary for Trade and Foreign Agricultural Affairs Luke Lindberg joined us with a recap of the Malaysia trade mission and a look at USDA’s broader trade strategy moving forward.
Mike Steenhoek of the Soy Transportation Coalition shares how extreme winter weather is affecting the ag transportation network and what producers should keep in mind as conditions slowly improve.
Matt Brockman, Communications Director for the Fort Worth Stock Show and Rodeo, joined us with a look at how the legendary event is moving forward—weather and all.
Strong White House backing supports ethanol demand, but timing now hinges on Congress resolving procedural — at the same time as they push toward a spending bill to avert another federal government shutdown.
Roger McEowen, with the Washburn School of Law, offers an in-depth look at two of the top legal issues of 202. Today, he walks through last year’s Waters of the United States (WOTUS) ruling and “lawfare.”
Lewis Williamson of HTS Commodities joined us with an update on the historic winter storm impacts and his outlook on today’s ag markets.