Worst air pollution Mammoth Lakes, today and tomorrow
Today (15 July): Air quality in Mammoth Lakes is poor. AQI and NO2 are poor; PM10, O3, and PM1 are fair; PM2.5 and SO2 are medium; CO and HCHO are good. Pollution peaks around 11:00 PM (NO2: 60.0/100).
Tomorrow (16 July 2026): Air quality in Mammoth Lakes is very poor. AQI worsens to very poor; PM10 decreases to medium; NO2 increases to very poor; O3 decreases to medium; PM1 decreases to medium; all other pollutants stay as today. Pollution peaks around 2:00 AM (NO2: 92.4/100). 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 Mammoth Lakes, high-altitude Sierra air is the main influence on air quality, and wildfire smoke from the Sierra foothills can degrade summer air quality. Most days bring generally favorable conditions here, with occasional exceptions tied to shifting weather patterns. Visitors and residents alike tend to notice the clearest air outside the warmest summer weeks.
Today - 15 July | Pollution peaks at 23:00
AQI:
Poor
60.0/100
PM2.5 (fine particles):
Medium
45.4/100
PM10 (coarse particles):
Fair
37.0/100
NO2 (nitrogen dioxide):
Poor
60.0/100
O3 (ozone):
Fair
39.4/100
SO2 (sulfur dioxide):
Medium
42.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Fair
32.4/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 02:00
AQI:
Very poor
92.4/100
PM2.5 (fine particles):
Medium
51.1/100
PM10 (coarse particles):
Medium
40.1/100
NO2 (nitrogen dioxide):
Very poor
92.4/100
O3 (ozone):
Medium
41.0/100
SO2 (sulfur dioxide):
Medium
42.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Medium
43.0/100
Pollen forecast in Mammoth Lakes
View pollen forecastFrequently Asked Questions
Is air quality bad in Mammoth Lakes right now?
On 15 July 2026, overall air quality in Mammoth Lakes is poor. AQI is the main air quality indicator at 60.0/100. Pollution peaks around 11:00 PM (NO2: 60.0/100).
Will air quality be worse tomorrow in Mammoth Lakes?
On 16 July 2026, air quality conditions in Mammoth Lakes will be worse than today, with AQI forecast at very poor at 92.4/100. Pollution peaks around 2:00 AM (NO2: 92.4/100).
When is air pollution at its worst in Mammoth Lakes?
Air quality in Mammoth Lakes shifts across the year: winter rains provide the only real relief from an otherwise persistent haze, but summer and early autumn bring the highest ozone levels, and wildfire smoke can spike particulate readings sharply from August through October. Coastal breezes offer some relief compared to inland valley locations that see heavier smog buildup.
Are air quality levels in Mammoth Lakes 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