
Brazilian meteorologists forecast that the first half of November 2026 will bring recurring planting rains to Minas Gerais, Goiás and Mato Grosso, with 30-day totals up to 300 mm in parts of Minas Gerais. A cold air incursion from 6 to 8 November brings risk of light frost in the mountains of Paraná and Santa Catarina.
Timely rain in the central-west and southeast supports soybean and corn planting, which is supply-neutral to mildly bearish for grain prices. Frost risk in the south is a localized concern for corn and wheat rather than a major price driver.
After 324 past neutral weather events, SOY moved a median +0.0% over 5 sessions (52% higher; middle half -1.4% to +1.7%), and +0.7% over 20.
After 445 past neutral weather events, CORN moved a median +0.1% over 5 sessions (52% higher; middle half -1.4% to +1.6%), and +0.7% 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.