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Idaho Air Alert Holds; Smoke, 100°F Temperatures Loom

7/27/2026

26 6 Full Breakdown

Summary

Story summary

An Air Quality Alert remains Tuesday afternoon for Idaho, prompting officials to urge residents to limit outdoor time, keep windows closed, and wear N95 masks as Boise is Unhealthy and Nampa Hazardous.
Evening winds push smoke into the Treasure and Magic valleys, worsening air quality.
A ridge sustains a southwest flow that raises Boise temperatures to the 100s by Thursday-Friday, bringing cooler, dry conditions as a front moves in.

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Story summary

An Air Quality Alert remains Tuesday afternoon for Idaho, prompting officials to urge residents to limit outdoor time, keep windows closed, and wear N95 masks as Boise is Unhealthy and Nampa Hazardous.
Evening winds push smoke into the Treasure and Magic valleys, worsening air quality.
A ridge sustains a southwest flow that raises Boise temperatures to the 100s by Thursday-Friday, bringing cooler, dry conditions as a front moves in.