# July Heat Wave Puts Midwest Corn and Soybeans Under Pressure

> A dangerous early July heat wave is forecast to stress U.S. corn and soybean crops across the Midwest, northern Plains, Great Lakes and eastern U.S. Forecasters also flagged ridge-riding storm complexes with derecho risk, while the crops are entering a critical yield development period.

- Date: 2026-07-01 · published 2026-07-01T12:00:00.000Z
- Category: weather · region US · magnitude medium
- Page: https://feedsoft.ai/events/12984-july-heat-wave-puts-midwest-corn-and-soybeans-under-pressure
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md), [Soybeans](https://feedsoft.ai/c/SOY.md)

## Why it matters

Heat stress during pollination and yield formation can cut yields and lift corn and soybean prices. Storm damage risk adds upside pressure if losses materialize.

## Read by commodity

- SOY: bullish ▲
- CORN: bullish ▲

## Linked price moves

| Commodity | Date | Window | Change % | z-score | Why linked |
| --- | --- | --- | --- | --- | --- |
| SOY | 2026-07-05 | 1 | +4.5% | 4.6 | Forecast early-July heat wave over the Midwest during critical yield development adds weather risk premium supporting the rally. |

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2026-02-11 | [Lack of rain pressures corn and soybeans in the South](https://feedsoft.ai/events/13451-lack-of-rain-pressures-corn-and-soybeans-in-the-south.md) | -0.5% | +1.7% |
| CORN | 2026-01-29 | [Heat wave hits Argentina, threatening corn and soybean crops](https://feedsoft.ai/events/13817-heat-wave-hits-argentina-threatening-corn-and-soybean-crops.md) | -0.3% | -0.1% |
| CORN | 2026-05-29 | [Will Midwest Dryness Hurt Corn and Soybean Yields This Summer?](https://feedsoft.ai/events/12998-will-midwest-dryness-hurt-corn-and-soybean-yields-this-summer.md) | -5.3% | -7.3% |
| CORN | 2022-06-30 | [U.S. Midwest forecast spells bad news for corn, soybeans \| The Western Producer](https://feedsoft.ai/events/13357-u-s-midwest-forecast-spells-bad-news-for-corn-soybeans-the-western-producer.md) | +1.0% | -16.7% |
| CORN | 2026-09-11 | [Late-season weather adds uncertainty to Midwest corn and soybeans - Iowa Agribusiness Radio Network](https://feedsoft.ai/events/12965-late-season-weather-adds-uncertainty-to-midwest-corn-and-soybeans-iowa.md) | +2.5% | -0.2% |
| SOY | 2026-02-11 | [Lack of rain pressures corn and soybeans in the South](https://feedsoft.ai/events/13451-lack-of-rain-pressures-corn-and-soybeans-in-the-south.md) | +1.0% | +6.9% |
| SOY | 2026-01-29 | [Heat wave hits Argentina, threatening corn and soybean crops](https://feedsoft.ai/events/13817-heat-wave-hits-argentina-threatening-corn-and-soybean-crops.md) | +1.6% | +6.8% |
| SOY | 2026-05-29 | [Will Midwest Dryness Hurt Corn and Soybean Yields This Summer?](https://feedsoft.ai/events/12998-will-midwest-dryness-hurt-corn-and-soybean-yields-this-summer.md) | -5.4% | -5.7% |

## Sources

- farms.com: https://www.farms.com/ag-industry-news/july-heat-wave-puts-midwest-corn-and-soybeans-under-pressure-822.aspx

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