# How Will the Early-Summer Heat Wave Affect Corn?

> An extreme heat wave with warnings across much of the central and eastern U.S. began around June 20 and is expected to be relatively short-lived. Heat is arriving before most corn reaches pollination, which reduces potential yield loss.

- Date: 2025-06-23 · published 2025-06-23T12:00:00.000Z
- Category: weather · region US · magnitude low
- Page: https://feedsoft.ai/events/13082-how-will-the-early-summer-heat-wave-affect-corn
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md)

## Why it matters

Heat stress during the weeks before pollination can lower corn plant performance and yield potential, adding some weather premium. Because the heat is short-lived and early, the price effect is likely limited.

## Read by commodity

- CORN: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2023-07-27 | [How Extreme Heat Can Affect Corn Yield](https://feedsoft.ai/events/13265-how-extreme-heat-can-affect-corn-yield.md) | -13.2% | -14.2% |
| CORN | 2021-07-23 | [How record heat could affect the U.S. corn and soybean markets - DTN](https://feedsoft.ai/events/45915-how-record-heat-could-affect-the-u-s-corn-and-soybean-markets-dtn.md) | -1.1% | -2.6% |
| CORN | 2024-02-23 | [Argentina corn and soy outlooks take hit after heat wave](https://feedsoft.ai/events/13939-argentina-corn-and-soy-outlooks-take-hit-after-heat-wave.md) | +0.1% | +7.0% |
| CORN | 2025-06-01 | [Effects of Heat Stress on Corn](https://feedsoft.ai/events/13092-effects-of-heat-stress-on-corn.md) | +0.5% | -2.2% |
| 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% |

## Sources

- dtnpf.com: https://www.dtnpf.com/agriculture/web/AG/news/article/2025/06/23/will-early-summer-heat-wave-affect

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