Worst air pollution Joshua Tree, today and tomorrow
Today (30 August): Air quality in Joshua Tree is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 23.9/100).
Tomorrow (31 August 2026): Air quality in Joshua Tree is fair. All pollutants stay as today. Pollution peaks around 4:00 AM (PM10: 26.7/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Joshua Tree National Park's air quality reflects the Colorado and Mojave desert transition position, with consistent desert winds providing reasonable ventilation across the iconic boulder and Joshua tree landscape. The park's proximity to the Coachella Valley and Inland Empire basin means transported ozone affects the park's plant communities, while windblown desert dust contributes PM10 during dust storm events and the extraordinary desert wilderness otherwise maintains generally good conditions throughout most of the year.
Today - 30 August | Pollution peaks at 08:00
AQI:
Fair
23.9/100
PM2.5 (fine particles):
Good
17.5/100
PM10 (coarse particles):
Fair
22.8/100
NO2 (nitrogen dioxide):
Good
6.5/100
O3 (ozone):
Fair
23.9/100
SO2 (sulfur dioxide):
Good
3.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
4.5/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 04:00
AQI:
Fair
26.7/100
PM2.5 (fine particles):
Good
19.8/100
PM10 (coarse particles):
Fair
26.7/100
NO2 (nitrogen dioxide):
Good
6.5/100
O3 (ozone):
Fair
23.0/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.6/100
PM1 (ultrafine particles):
Good
4.9/100
Pollen forecast in Joshua Tree
View pollen forecastFrequently Asked Questions
Is air quality bad in Joshua Tree right now?
On 30 August 2026, overall air quality in Joshua Tree is fair. AQI is the main air quality indicator at 23.9/100. Pollution peaks around 8:00 AM (O3: 23.9/100).
Will air quality be worse tomorrow in Joshua Tree?
On 31 August 2026, air quality conditions in Joshua Tree will be similar to today, with AQI forecast at fair at 26.7/100. Pollution peaks around 4:00 AM (PM10: 26.7/100).
When is air pollution at its worst in Joshua Tree?
Joshua Tree National Park's air quality follows a clear seasonal pattern: the cleanest air usually comes in winter, when storms periodically flush pollution out of the basin, but summer and early autumn bring the highest ozone levels, and wildfire smoke can spike particulate readings sharply from August through October. The mountains ringing the basin can trap pollution close to the ground for days when winds are calm.
Are air quality levels in Joshua Tree 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 30 August 2026 at 14:32 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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