Upper Smith Fire
Active
Boundary County, Idaho · Discovered July 8, 2026
Source: NIFC/IRWIN (interagency) · Last upstream update 15 days ago
Upper Smith Fire
The Upper Smith Fire fire has burned 4,848 acres in Boundary County, Idaho. Crews have fully contained the fire. It has shown no measurable growth in the last 24 hours. Wind at the fire is blowing 2 mph toward the NW, with gusts to 11 mph. Air quality near the fire is unhealthy for sensitive groups (AQI 138). 2 personnel are assigned to the incident.
Upper Smith Fire size over time
19 official size readingsGrew from 3,417 to 4,848 acres across these reports.
Acreage as reported by the official incident feed, recorded by Fire Nearby each time it changes. Hover or tap the chart for each reading.
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Incident timeline
Generated automatically from official feeds the moment they change: size, containment, evacuation zones, aircraft, and incident team updates.
Containment rose to 100%
15 days ago · October 26, 2026Fire reported 100% contained
15 days ago · October 26, 2026New perimeter mapped at 4,848 acres (national perimeter feed)
59 days ago · September 12, 2026Grew 121 acres in 3 days to 4,788 acres
71 days ago · August 31, 2026Grew 115 acres in 3 days to 4,667 acres
74 days ago · August 28, 2026Grew 110 acres in 24 hours to 4,552 acres
77 days ago · August 25, 2026Grew 221 acres in 47 hours to 4,442 acres
78 days ago · August 24, 2026Grew 327 acres in 48 hours to 4,221 acres
80 days ago · August 22, 2026Grew 197 acres in 6 days to 3,894 acres
82 days ago · August 20, 2026Containment rose to 38%
87 days ago · August 15, 2026Grew 150 acres in 3 days to 3,697 acres
88 days ago · August 14, 2026Grew 130 acres in 9 hours to 3,547 acres
91 days ago · August 11, 2026Fire first listed in official incident feeds at 3,417 acres
91 days ago · August 11, 2026
Raw growth & containment readings
| Recorded | Size | Contained |
|---|---|---|
| 10/26/2026, 10:53:13 PM | 4,848 acres | 100% |
| 9/5/2026, 10:57:45 PM | 4,848 acres | 41% |
| 9/1/2026, 11:09:34 PM | 4,808 acres | 42% |
| 8/31/2026, 11:27:39 PM | 4,788 acres | 42% |
| 8/30/2026, 11:20:19 PM | 4,701 acres | 42% |
| 8/29/2026, 11:35:48 PM | 4,701 acres | 36% |
| 8/28/2026, 11:42:13 PM | 4,667 acres | 36% |
| 8/26/2026, 9:55:48 PM | 4,576 acres | 36% |
| 8/25/2026, 10:15:43 PM | 4,552 acres | 36% |
| 8/24/2026, 9:59:06 PM | 4,442 acres | 36% |
| 8/22/2026, 10:30:00 PM | 4,221 acres | 38% |
| 8/21/2026, 11:11:42 PM | 3,906 acres | 38% |
| 8/20/2026, 10:27:22 PM | 3,894 acres | 38% |
| 8/15/2026, 10:16:32 PM | 3,697 acres | 38% |
| 8/14/2026, 11:58:21 PM | 3,697 acres | 35% |
| 8/14/2026, 12:07:12 AM | 3,600 acres | 35% |
| 8/13/2026, 12:02:03 AM | 3,600 acres | 30% |
| 8/11/2026, 11:30:36 PM | 3,547 acres | 30% |
| 8/11/2026, 2:04:22 PM | 3,417 acres | 32% |
Recorded by Fire Nearby each time upstream data changes.
About this data
Fire Nearby aggregates official incident data and shows exactly when each value was last updated. For evacuation decisions, always follow instructions from local emergency officials and check county emergency management channels.