Worst air pollution Sun Valley, today and tomorrow
Today (16 July): Air quality in Sun Valley is fair. PM2.5 and O3 are fair; AQI and NO2 are medium; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (NO2: 43.1/100).
Tomorrow (17 July 2026): Air quality in Sun Valley is fair. All pollutants stay as today. Pollution peaks around 9:00 PM (NO2: 51.6/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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In Sun Valley, high mountain air is the main influence on air quality, and wildfire smoke drifting from central Idaho is the main summer concern. Day-to-day conditions in Sun Valley can still vary with local weather, wind direction, and time of year. As with most US destinations, conditions here are best understood by season rather than by a single yearly average.
Today - 16 July | Pollution peaks at 18:00
AQI:
Medium
43.1/100
PM2.5 (fine particles):
Fair
27.5/100
PM10 (coarse particles):
Good
18.3/100
NO2 (nitrogen dioxide):
Medium
43.1/100
O3 (ozone):
Fair
32.0/100
SO2 (sulfur dioxide):
Good
12.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
19.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 21:00
AQI:
Medium
51.6/100
PM2.5 (fine particles):
Fair
23.7/100
PM10 (coarse particles):
Good
9.1/100
NO2 (nitrogen dioxide):
Medium
51.6/100
O3 (ozone):
Fair
29.1/100
SO2 (sulfur dioxide):
Good
12.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.0/100
PM1 (ultrafine particles):
Good
17.6/100
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Frequently Asked Questions
Is air quality bad in Sun Valley right now?
On 16 July 2026, overall air quality in Sun Valley is fair. O3 is the main pollutant at 32.0/100. Pollution peaks around 6:00 PM (NO2: 43.1/100).
Will air quality be worse tomorrow in Sun Valley?
On 17 July 2026, air quality conditions in Sun Valley will be similar to today, with O3 forecast at fair at 29.1/100. Pollution peaks around 9:00 PM (NO2: 51.6/100).
When is air pollution at its worst in Sun Valley?
Sun Valley's air quality follows a clear seasonal pattern, as autumn is often the cleanest stretch, between wildfire season and the onset of winter inversions; by contrast, winter temperature inversions can trap cold air and pollution in valleys and basins for days at a time. Higher-elevation, more exposed locations generally avoid the worst of the valley inversion episodes.
Are air quality levels in Sun Valley based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app