Idaho Smoke Map

Idaho Smoke Map Legend

**(Preliminary Data Warning: Data found on the map shown below is preliminary and is subject to change. Data is in local standard time format - no adjustment for daylight savings time.)

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Friday, July 31, 2026

Long weekend of lingering smoke

Smoke will remain widespread across Idaho through Friday, with the heaviest concentrations in southwest Idaho, including the Treasure Valley, Owyhee Mountains, and West Central Mountains. Moderate smoke will continue across Central Idaho, while North and East Idaho gradually improve.

Friday night into Saturday, smoke will settle into valleys and low areas as temperature inversions strengthen, causing air quality to worsen. A cold front and stronger afternoon mixing should improve conditions Saturday afternoon. However, increasing winds Saturday evening may bring heavier smoke into southwest Idaho from Oregon and the Panhandle from Central Washington.

Smoke will linger across southwest Idaho through Monday, with limited improvement. The Treasure Valley and nearby valleys may see moderate smoke at times, while Central and East Idaho will see periods of light to moderate smoke. Additional smoke from British Columbia may reach the Panhandle Monday.

The highest AQI levels are expected in the Treasure Valley, where periods of UNHEALTHY air are possible, especially overnight and in the morning. Parts of the western Snake River Plain and West Central Mountains could briefly reach UNHEALTHY FOR SENSITIVE GROUPS.


NOAA GOES-West GeoColor (true color) visible satellite image captured at 15:21 UTC (9:21 a.m. MDT) on 31 July 2026 shows widespread areas of smoke are visible over Washington, Central Oregon, and most of Idaho.

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