Air Quality in McAllen, United States
Windy
29.2°C · 56.5% humidity
29.2°
Feels 32.8°
61
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations
Nearby Monitoring Stations
McAllen's air quality — share it
AQI Forecast
54
2pm
34
34
61
5pm
53
41
37
8pm
32
30
31
11pm
30
29
26
2am
26
26
25
5am
25
25
27
8am
27
27
27
11am
34
34
Air Quality Index Trend
42h · 1 stnMcAllen's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in McAllen is 3.4× the WHO annual guideline of 5 µg/m³.
56.5%
Humidity
98.1 km/h
Wind SE
1006.6 hPa
Pressure
7.9
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
16.87 µg/m³
PM10
27.45 µg/m³
050100150200300500
What is the weather forecast for McAllen?
Temperature & Precipitation
PM2.5 Trend
42h · 1 stationPM2.516.87 µg/m³
×1.1 WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX7.9
Very High
Station readings (2 stations within 25 km)
16.87
Median
17.45
Average
16.4
Low
18.5
High
PM2.5 µg/m³ · Model: 13.7 · Bias: -3.2
What is the 7-day forecast for McAllen?
05-28
35.1° 23.6°
0.13 mm
05-29
33.8° 24.1°
0.81 mm
05-30
31.9° 23.1°
0.06 mm
05-31
33.3° 22.4°
0.06 mm
06-01
36.1° 23.8°
06-02
33.5° 23.5°
06-03
33.6° 23.9°
Both models agree
Avg diff: 1.9°C
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-28T22:51 UTC.