Idaho Potato Growers Reported Lower Harvest Yields
The state's 2026 potato crop has faced significant weather hurdles, resulting in smaller tuber sizes and lower production.
Updated on Sept. 29, 2026 in Agriculture

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Idaho potato growers are reporting decreased yields for the 2026 season compared to the previous year. While crop quality remains high, harvest totals are expected to be lower as farmers deal with smaller tuber sizes.
Why it matters
The lower yields follow a difficult growing season marked by erratic weather, including cold snaps, frost, and extreme heat. These environmental challenges have disrupted standard production levels across the state.
Idaho growers planted 298,915 acres in 2026, a reduction of approximately 13,000 acres from the 2025 season. Yields are currently tracking lower than the 440 hundredweight per acre reported in 2025.
The players
Idaho Potato Commission
This state agency promotes and protects the Idaho potato brand while providing data on acreage and industry performance.
The details
Weather conditions including spring frost, summer heat, and wildfire smoke in the southwest region stunted crop development. Growers delayed harvesting in some fields to provide extra time for tubers to grow, though the overall size profile remains smaller than in previous years.
Timeline
March 2026: Unseasonably warm temperatures prompted early planting in eastern Idaho.
Late April and May 2026: Multiple cold snaps impacted crop development.
June 2026: Frost events occurred, further stressing the potato crop.
Third week of August 2026: Southwest Idaho growers began the harvest.
First week of October 2026: Harvesting across the state is expected to conclude.
Market Landscape
This year's reduction in potato output marks a deviation from recent production trends following the Idaho Potato Commission's annual planted acreage reports. This decline signals a tightening of supply for the state's signature agricultural commodity.
Reduced yields and smaller tuber sizes may impact the availability of specific potato varieties in grocery stores and affect local commodity pricing. Consumers could see shifts in the cost or variety of fresh potatoes as the harvest concludes.
The takeaway
The 2026 season highlights the vulnerability of the potato crop to volatile spring and summer weather patterns in the Intermountain West. Farmers are continuing to adapt their harvest schedules to mitigate the impact of smaller tuber sizes on their overall annual production.
What happens next
Harvesting activities across the state are scheduled to conclude by the first week of October 2026.
Further reading
Find more updates on the state's seasonal crops in our agriculture section.
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