Worst air pollution Little Rock, today and tomorrow
Today (9 August): Air quality in Little Rock is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 42.2/100).
Tomorrow (10 August 2026): Air quality in Little Rock is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 31.6/100). Airmine updates local air quality forecasts four times daily.
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Little Rock's air quality reflects the Arkansas River valley's position in the south-central US, with vehicle emissions from I-30 and I-40 the primary local source in this mid-sized state capital. The surrounding Ouachita and Ozark foothills create modest topographic variation, while summer ozone from regional vehicle and agricultural sources and the flat Arkansas river plain provide the primary warm-season air quality influences.
Today - 9 August | Pollution peaks at 13:00
AQI:
Medium
42.2/100
PM2.5 (fine particles):
Good
10.7/100
PM10 (coarse particles):
Good
10.2/100
NO2 (nitrogen dioxide):
Good
0.8/100
O3 (ozone):
Medium
42.2/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.6/100
PM1 (ultrafine particles):
Good
7.2/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 13:00
AQI:
Fair
31.6/100
PM2.5 (fine particles):
Good
12.4/100
PM10 (coarse particles):
Good
11.2/100
NO2 (nitrogen dioxide):
Good
1.2/100
O3 (ozone):
Fair
31.6/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
7.9/100
Pollen forecast in Little Rock
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Little Rock
Frequently Asked Questions
Is air quality bad in Little Rock right now?
On 9 August 2026, overall air quality in Little Rock is medium. AQI is the main air quality indicator at 42.2/100. Pollution peaks around 1:00 PM (O3: 42.2/100).
Will air quality be worse tomorrow in Little Rock?
On 10 August 2026, air quality conditions in Little Rock will be worse than today, with AQI forecast at fair at 31.6/100. Pollution peaks around 1:00 PM (O3: 31.6/100).
When is air pollution at its worst in Little Rock?
Little Rock's air quality follows a clear seasonal pattern. Typically, between summer ozone and occasional winter inversions, spring and fall are the year's cleanest stretch, 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 Little Rock 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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