# Soybean yield predictions drop with prolonged heat wave | MU Extension

> The University of Missouri Extension lowered its soybean yield predictions after a prolonged heat wave, with northern Missouri hit hardest. Declining soil moisture and drought stress are affecting late-planted soybeans in key reproductive stages.

- Date: 2026-08-14 · published 2026-08-14T12:00:00.000Z
- Category: weather · region US · magnitude low
- Page: https://feedsoft.ai/events/12972-soybean-yield-predictions-drop-with-prolonged-heat-wave-mu-extension
- Commodities: [Soybeans](https://feedsoft.ai/c/SOY.md), [Soybean Meal](https://feedsoft.ai/c/SBM.md)

## Why it matters

Drought stress during pod set and seed fill reduces soybean yields, which supports soybean and meal prices. The impact is regional, so the national price effect is limited.

## Read by commodity

- SBM: bullish ▲
- SOY: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| SOY | 2018-02-28 | [Prolonged drought wrecking soybean and corn crops, threatens Argentina's growth — MercoPress](https://feedsoft.ai/events/66345-prolonged-drought-wrecking-soybean-and-corn-crops-threatens-argentina-s-growth.md) | +2.6% | -1.8% |
| SOY | 2022-12-07 | [Soybeans, meal extend gains, with corn, wheat higher - Brownfield Ag News](https://feedsoft.ai/events/38367-soybeans-meal-extend-gains-with-corn-wheat-higher-brownfield-ag-news.md) | +1.7% | +0.8% |
| SOY | 2026-07-01 | [July Heat Wave Puts Midwest Corn and Soybeans Under Pressure](https://feedsoft.ai/events/12984-july-heat-wave-puts-midwest-corn-and-soybeans-under-pressure.md) | +7.0% | +5.5% |
| SOY | 2022-07-27 | [Soybeans, soybean products extend gains - Brownfield Ag News](https://feedsoft.ai/events/40517-soybeans-soybean-products-extend-gains-brownfield-ag-news.md) | +2.4% | +2.2% |
| SOY | 2022-03-23 | [Brazil Drought Impacts Soybean Production - Field Advisor](https://feedsoft.ai/events/13737-brazil-drought-impacts-soybean-production-field-advisor.md) | -3.2% | +3.0% |
| SBM | 2018-02-28 | [Prolonged drought wrecking soybean and corn crops, threatens Argentina's growth — MercoPress](https://feedsoft.ai/events/66345-prolonged-drought-wrecking-soybean-and-corn-crops-threatens-argentina-s-growth.md) | -0.5% | -3.6% |
| SBM | 2022-12-07 | [Soybeans, meal extend gains, with corn, wheat higher - Brownfield Ag News](https://feedsoft.ai/events/38367-soybeans-meal-extend-gains-with-corn-wheat-higher-brownfield-ag-news.md) | +0.8% | +8.3% |
| SBM | 2022-07-27 | [Soybeans, soybean products extend gains - Brownfield Ag News](https://feedsoft.ai/events/40517-soybeans-soybean-products-extend-gains-brownfield-ag-news.md) | +3.1% | -0.7% |

## Sources

- extension.missouri.edu: https://extension.missouri.edu/news/soybean-yield-predictions-drop-with-prolonged-heat-wave

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