Key Highlights

  • Corn futures fell to around $4.3 a bushel, pulling back from a one-month high reached on July 7.
  • Hotter, drier conditions are expected across the US Midwest through late July, threatening pollination.
  • France's corn crop rating plunged to a 13-year low of 58% good-to-excellent following a record heatwave.

Corn futures retreated to around $4.3 a bushel, pulling back from a one-month high reached on July 7, as traders opted to take profits ahead of the USDA's closely watched WASDE report. The pullback is notable because it came despite an increasingly bullish weather setup, illustrating how profit-taking ahead of major data releases can temporarily override even genuinely supportive fundamental developments.

The weather backdrop for US corn has turned more concerning in recent days. Hotter and drier conditions are expected to persist across parts of the Midwest through late July, raising concerns about pollination during the crop's critical July 10-31 window — a period widely regarded by agronomists as the most sensitive stretch of the corn growing season, when heat stress can meaningfully reduce eventual yields. Ordinarily, this kind of weather risk would be expected to support prices rather than coincide with a pullback, underscoring the extent to which traders were focused on locking in gains ahead of Friday's report rather than extending bullish bets into the data release.

European weather concerns have added to the global supply risk picture. France's corn crop rating plunged to a 13-year low of just 58% good-to-excellent, following a record heatwave that has stressed crops across the country. As one of Europe's most significant corn producers, a sharp deterioration in French crop conditions represents a meaningful downgrade to regional supply prospects, even as the immediate market reaction in US futures has been a pullback rather than a rally.

Crude oil prices have provided a partial offset to corn's downside, jumping after the US renewed strikes on Iran in retaliation for recent tanker attacks. Higher energy prices tend to support corn-based ethanol demand, since ethanol serves as a substitute or blending component for gasoline, and elevated oil prices improve the economics of biofuel production. That connection has helped limit how far corn has fallen even as the broader tone in the market has turned more cautious ahead of the WASDE release.

Markets now await Friday's report, which is expected to leave US corn production and yield forecasts largely unchanged, with 2026/27 ending stocks seen at around 1.96 billion bushels. Should the report confirm that steady outlook despite the deteriorating weather conditions in both the US and Europe, traders may quickly refocus on the pollination-period weather risk once the immediate data event has passed, potentially setting up for renewed price gains if hot, dry conditions persist through the critical late-July window.