
AgWeb reported on 17 October 2025 that the Climate Prediction Center gives a 71% chance of La Niña developing from October through December and has issued a La Niña Watch. Nutrien's Eric Snodgrass expects an early-peaking event with dryness in the US South and wetter-north, drier-south conditions in South America.
Expected dryness in southern US and South America raises the risk of crop shortfalls and tighter feed grain and soymeal supplies, which supports prices if the pattern verifies.
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 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 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.