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The last recorded incident change is more than 14 days old or undated. Historical fire behavior and summaries below are not confirmation of current conditions.
Automated summary generated: Oct 10, 2026 21:04 UTC. It may lag behind the report and is not an official alert.
The Tartar wildfire, located in Washington County, Idaho, was first discovered on July 24, 2026. By August 6, the fire had burned 147,418 acres and was 53% contained, with 665 personnel on the scene. Growth accelerated to 158,027 acres by August 9, at which point containment rose to 87% and 803 personnel were deployed; the fire was described as active, flanking, torching, and smoldering. By August 17 containment reached 98% with only 86 personnel remaining, and the fire behavior shifted to minimal, smoldering, creeping, and isolated torching. The situation remained largely unchanged through late September, with containment holding at 98% until the final report on September 3, when the fire was declared 100% contained. The estimated cost climbed from $18,486,850 on August 9 to $25,000,000 by September 3.
Official source description: 21 Miles NW from Weiser, ID
Minimal; Smoldering; Isolated Torching
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NIFC fire information and official resources βIRWIN ID: {DB5448A6-FCAC-4041-A817-6F8198161DBA}
Discovered: Jul 24, 2026
Cause: Natural
Est. Cost to Date: $25,000,000
Coordinates: 44.5413, -117.093
Other wildfires no longer present in our filtered incident feed in ID.
The Tartar Fire has burned 158,027 acres as of September 3, 2026.
Yes, the Tartar Fire is fully contained (100%).
The official cause has been listed as: Natural.
The Tartar Fire is burning in Washington, ID.
The Tartar Fire is no longer in our filtered incident feed. This alone does not confirm extinguishment.
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