SATURDAY, JULY 18, 2026 SANDPOINT, IDAHO
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Environment

Boundary County Wildfires Send Smoke Into Coeur d’Alene; Air Quality Expected to Improve

Wildfire smoke over a valley

Thick smoke from multiple wildfires burning in Boundary County drifted south into the Coeur d’Alene area Thursday, blanketing the city and surrounding mountains with haze and the acrid smell of burning timber. Residents woke to noticeably degraded air quality as several fires raged in the remote, rugged terrain of North Idaho’s northwestern corner.

The Turner Hill Fire, which ignited shortly before 9 p.m. Wednesday north of Bonners Ferry, grew to 250 acres by Thursday evening. Level 3 evacuation orders were issued for residents in the immediate vicinity as crews worked to contain the fast-moving blaze in challenging topography.

The larger threat came from the Upper Smith Fire near the Canadian border, which had grown to nearly 600 acres by the same measurement time. First reported on July 8, the Upper Smith Fire burns across steeply sloped, rugged terrain on the north aspect of the mountains—conditions that complicate firefighting efforts and allow flames to spread rapidly through timber.

Two additional fires started Thursday in Boundary County: the Alpha Fire near the Montana border, measuring just 0.1 acres, and the Dusty Fire just north of the Bonner-Boundary county line, at 2 acres. While smaller, these fires add to the overall fire management burden across the region during peak fire season.

Air Quality Expected to Stabilize

The smoke’s southward drift highlighted the vulnerability of populated areas in Kootenai County to air quality degradation when large fires burn to the north. One resident observed that conditions were gradually improving, noting, “It’s kind of lifting. But it’s still not great.”

The Idaho Department of Environmental Quality forecast improvement for the weekend, projecting the air quality index in Coeur d’Alene to range from 80 to 83—within the “acceptable” range. This marked an improvement from the degraded conditions experienced Thursday morning, though smoke may linger in valleys and low-lying areas.

Ongoing Fire Season Concerns

The rapid growth of fires in Boundary County reflects the heightened fire danger present across North Idaho during summer months. The combination of steep terrain, dense timber, and dry conditions creates an environment where fires can spread quickly and become difficult to suppress.

Residents and property owners in areas near active wildfires should monitor evacuation orders from local emergency management and remain prepared to leave if conditions change. The Upper Smith Fire’s location in extremely rugged country means crews may rely heavily on air support and strategic containment rather than direct ground attack.

For residents concerned about long-term wildfire risk in the region, North Idaho continues to face extreme wildfire risk amid record drought and heat, and federal lands management policy remains a key topic for regional representatives.

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