Feed checks and source-record updates do not necessarily mean fire conditions changed. Figures below reflect the last recorded incident report.
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: Aug 21, 2026 21:42 UTC. It may lag behind the report and is not an official alert.
The Rattlesnake wildfire, located in Grafton County, New Hampshire, was first discovered on August 14, 2026, and remains active as of the latest update. The United States Forest Service (USFS) is the jurisdictional agency overseeing the incident. As of August 20, 2026, the fire has burned 14 acres with no containment reported and the cause remains undetermined. No additional growth or containment data is available beyond the initial 14βacre figure, indicating the situation has not yet evolved significantly since discovery.
Historical observations from incident reports, not a live forecast. Acreage and containment can decrease when agencies correct their estimates.
1
14 acres
14 acres
Latest available source report: Aug 20, 2026 21:55 UTC. This is the report date, not confirmation of current fire conditions.
There are not enough distinct dated measurements to establish a documented progression for this incident.
| Report date (UTC) | Acres | Containment | Source |
|---|---|---|---|
| Aug 20, 2026 21:55 | 14 | Not reported | NIFC |
Current air quality readings are unavailable for this incident. Older readings are not shown as current conditions.
Check current air quality on AirNow.gov βAny automated community or travel summary below may be outdated. It is not a live evacuation or road-closure notice.
Verify evacuation orders, closures and access with the responsible fire agency, county emergency management or sheriff. A containment percentage, feed status or AQI reading does not establish that an area is safe to enter.
NIFC fire information and official resources βIRWIN ID: {07A508FE-AE01-484E-A4D9-DC71012A1C8D}
Discovered: Aug 14, 2026
Cause: Natural
Managing Agency: USFS
Coordinates: 43.8062, -71.842
Other wildfires no longer present in our filtered incident feed in NH.
The Rattlesnake Fire has burned 14 acres as of August 20, 2026.
Containment has not been officially reported for the Rattlesnake Fire.
The official cause has been listed as: Natural.
The Rattlesnake Fire is burning in Grafton, NH.
The Rattlesnake Fire is no longer in our filtered incident feed. This alone does not confirm extinguishment.
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