Smoke Brief: August 31, 2026

Wildfire smoke prevalence at the ground level in the U.S. is LOW. Smoke is currently impacting the Pacific West and Mountain West regions.

In the Pacific West, east of the Cascades in Washington and Oregon and California will experience periods of scattered LIGHT smoke today and tomorrow, with localized MEDIUM to HEAVY smoke close to the fires in central Washington, northern Oregon, and central coastal California.
In the Mountain West, Idaho and western Montana will be impacted by periods of scattered LIGHT smoke today and tomorrow.
There are seven air resource advisors assigned in New Mexico (1), Washington (1), Oregon (4), and California (1).

Map of air quality in western U.S. on August 31 2026 via airnow.gov

PM2.5 Air Quality Index 20260831 Monday 0600 EDT

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