Worst air pollution Mountain Home, today and tomorrow
Today (9 August): Air quality in Mountain Home is fair. O3, SO2, and PM1 are fair; AQI, PM2.5, and NO2 are medium; PM10, CO, and HCHO are good. Pollution peaks around 2:00 AM (NO2: 42.9/100).
Tomorrow (10 August 2026): Air quality in Mountain Home is fair. NO2 increases to fair; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 9:00 AM (PM2.5: 40.8/100). 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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The dominant factor behind Mountain Home's air quality is clean north-central Arkansas hill-country air; air quality is generally very good outside of pollen peaks. Mountain Home doesn't see much year-to-year variation in this basic pattern, though individual weeks can differ. Longer-term residents of Mountain Home tend to plan outdoor activity around these predictable shifts.
Today - 9 August | Pollution peaks at 02:00
AQI:
Medium
42.9/100
PM2.5 (fine particles):
Medium
40.2/100
PM10 (coarse particles):
Good
17.1/100
NO2 (nitrogen dioxide):
Medium
42.9/100
O3 (ozone):
Fair
38.9/100
SO2 (sulfur dioxide):
Fair
26.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Fair
27.8/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 09:00
AQI:
Medium
40.8/100
PM2.5 (fine particles):
Medium
40.8/100
PM10 (coarse particles):
Good
19.1/100
NO2 (nitrogen dioxide):
Fair
39.8/100
O3 (ozone):
Medium
40.4/100
SO2 (sulfur dioxide):
Fair
24.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Fair
28.1/100
Pollen forecast in Mountain Home
View pollen forecastFrequently Asked Questions
Is air quality bad in Mountain Home right now?
On 9 August 2026, overall air quality in Mountain Home is fair. O3 is the main pollutant at 38.9/100. Pollution peaks around 2:00 AM (NO2: 42.9/100).
Will air quality be worse tomorrow in Mountain Home?
On 10 August 2026, air quality conditions in Mountain Home will be similar to today, with NO2 forecast at fair at 39.8/100. Pollution peaks around 9:00 AM (PM2.5: 40.8/100).
When is air pollution at its worst in Mountain Home?
Mountain Home's air quality has a clear seasonal rhythm. Typically, the mildest, cleanest weather usually falls in spring and autumn, while prolonged summer heat waves are when air quality most often dips into unhealthy territory. Calm, cold winter spells can occasionally allow local pollution to build up before the next weather system clears it.
Are air quality levels in Mountain Home 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: 9 August 2026 at 20:27 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.
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