# Corn Falls in Chicago; Rain Delays Soybean Planting in Rio Grande do Sul

> Chicago corn futures declined ahead of the USDA report, with the December contract down 2.25 cents to $4.3925 per bushel during Monday’s session. Rain delayed soybean planting in Rio Grande do Sul; Emater estimates 6.645 million hectares will be planted and projects state production of 21.15 million tonnes.

- Date: 2026-11-09 · published 2026-11-10T01:35:24.937Z
- Category: weather · region Brazil · magnitude low
- Page: https://feedsoft.ai/events/90669-corn-falls-in-chicago-rain-delays-soybean-planting-in-rio-grande-do-sul
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md), [Soybeans](https://feedsoft.ai/c/SOY.md)

## Why it matters

Rain-related planting delays could raise concern about timely establishment of the Rio Grande do Sul soybean crop, while the reported decline in Chicago corn futures is bearish for corn prices. The size and persistence of any crop impact remain uncertain.

## Read by commodity

- SOY: bullish ▲
- CORN: bearish ▼

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2025-04-29 | [U.S. grains: Chicago grains, soy futures drop as U.S. planting pace accelerates - Grainews](https://feedsoft.ai/events/11121-u-s-grains-chicago-grains-soy-futures-drop-as-u-s-planting-pace-accelerates.md) | -3.7% | -1.3% |
| CORN | 2025-02-25 | [Brazil’s soybean harvest, safrinha corn-planting accelerate - Grain Central](https://feedsoft.ai/events/13513-brazil-s-soybean-harvest-safrinha-corn-planting-accelerate-grain-central.md) | -5.8% | +0.2% |
| CORN | 2024-03-06 | [Grain Markets: Can We Expect a Rally in Wheat, Corn, and Soybeans Anytime Soon?](https://feedsoft.ai/events/7304-grain-markets-can-we-expect-a-rally-in-wheat-corn-and-soybeans-anytime-soon.md) | +2.4% | -1.7% |
| CORN | 2021-08-20 | [Soybeans, corn down on rain in dry areas — Spot On Nebraska](https://feedsoft.ai/events/12609-soybeans-corn-down-on-rain-in-dry-areas-spot-on-nebraska.md) | +0.4% | -6.4% |
| CORN | 2019-04-11 | [Bumper harvest of soybeans and corn expected in Argentina, says Rosario grains exchange — MercoPress](https://feedsoft.ai/events/59433-bumper-harvest-of-soybeans-and-corn-expected-in-argentina-says-rosario-grains.md) | +0.7% | -3.1% |
| SOY | 2022-12-26 | [Dry Conditions Slow Soybean Planting in Rio Grande do Sul, Brazil](https://feedsoft.ai/events/13684-dry-conditions-slow-soybean-planting-in-rio-grande-do-sul-brazil.md) | +0.6% | +1.6% |
| SOY | 2022-04-25 | [Corn, soybean planting in Illinois delayed by cold temperatures and rain](https://feedsoft.ai/events/13373-corn-soybean-planting-in-illinois-delayed-by-cold-temperatures-and-rain.md) | -0.5% | -0.6% |
| SOY | 2017-10-30 | [Delay in soybean planting already compromises corn harvest in Goiás - Revista Cultivar](https://feedsoft.ai/events/68305-delay-in-soybean-planting-already-compromises-corn-harvest-in-goias-revista.md) | +0.2% | +2.1% |

## Sources

- obairrista.news: https://obairrista.news/materia/milho-recua-em-chicago-antes-do-usda-no-rs-chuva-atrasa-o-plantio-da-soja-667fb4

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.