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World Grain reports on September 1, 2025 that South America may see another weak La Niña, which could mirror last year's delayed seasonal rains that disrupted early corn and soybean planting. World Weather Inc. argues the earlier dryness had other atmospheric causes and that current Pacific conditions are not strong enough for a full La Niña.
Risk of delayed rains in Brazil and Argentina during planting could tighten soybean and corn export supplies, supporting prices for meal and feed grains.
world-grain.comDrew LernerSep 1, 2025After 1,079 past bullish weather events, Soybeans moved a median +0.3% over 5 sessions (54% higher; middle half -1.4% to +2.0%), and +0.9% over 20.
After 1,465 past bullish weather events, Corn moved a median +0.2% over 5 sessions (54% higher; middle half -1.4% to +1.9%), and +0.9% over 20.
After 453 past bullish weather events, Soybean Meal moved a median +0.5% over 5 sessions (55% higher; middle half -1.6% to +2.7%), and +0.5% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.
