Worst air pollution Idaho Falls, today and tomorrow
Today (16 July): Air quality in Idaho Falls is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 32.0/100).
Tomorrow (17 July 2026): Air quality in Idaho Falls is fair. All pollutants stay as today. Pollution peaks around 9:00 PM (NO2: 30.3/100). 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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Idaho Falls' air quality reflects the Snake River Plain's partial topographic enclosure between the Caribou and Lemhi mountain ranges, with vehicle emissions from US-20 and the surrounding agricultural and Idaho National Laboratory operations contributing local sources. Winter temperature inversions can trap emissions, while summer wildfire smoke from surrounding Idaho forests is an increasingly severe seasonal concern.
Today - 16 July | Pollution peaks at 08:00
AQI:
Fair
32.0/100
PM2.5 (fine particles):
Good
15.1/100
PM10 (coarse particles):
Good
9.7/100
NO2 (nitrogen dioxide):
Fair
22.3/100
O3 (ozone):
Fair
32.0/100
SO2 (sulfur dioxide):
Good
5.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
10.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 21:00
AQI:
Fair
30.3/100
PM2.5 (fine particles):
Good
12.8/100
PM10 (coarse particles):
Good
4.8/100
NO2 (nitrogen dioxide):
Fair
30.3/100
O3 (ozone):
Fair
29.1/100
SO2 (sulfur dioxide):
Good
4.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.0/100
PM1 (ultrafine particles):
Good
9.3/100
Pollen forecast in Idaho Falls
View pollen forecastFrequently Asked Questions
Is air quality bad in Idaho Falls right now?
On 16 July 2026, overall air quality in Idaho Falls is fair. AQI is the main air quality indicator at 32.0/100. Pollution peaks around 8:00 AM (O3: 32.0/100).
Will air quality be worse tomorrow in Idaho Falls?
On 17 July 2026, air quality conditions in Idaho Falls will be similar to today, with AQI forecast at fair at 30.3/100. Pollution peaks around 9:00 PM (NO2: 30.3/100).
When is air pollution at its worst in Idaho Falls?
Like most US cities, Idaho Falls sees air quality shift from season to season — autumn is often the cleanest stretch, between wildfire season and the onset of winter inversions, whereas summer brings regional wildfire smoke, while winter brings its own inversion-driven pollution episodes. Higher-elevation, more exposed locations generally avoid the worst of the valley inversion episodes.
Are air quality levels in Idaho Falls 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