Air Quality in Harlingen, United States
Windy
38.0°C · 35.5% humidity
38.0°
Feels 38.0°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Calibrated model
Nearby Monitoring Stations
Harlingen's air quality — share it
AQI Forecast
54
12pm
54
54
60
3pm
58
57
56
6pm
56
55
55
9pm
55
54
54
12am
54
54
54
3am
54
54
54
6am
54
54
54
9am
54
54
Air Quality Index Trend
31h · 2 stnHarlingen'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 Harlingen is 1.1× the WHO 24-hour guideline of 15 µg/m³.
35.5%
Humidity
103.4 km/h
Wind SSE
1005.5 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
16.27 µg/m³
PM10
34.3 µg/m³
050100150200300500
What is the weather forecast for Harlingen?
Temperature & Precipitation
PM2.5 Trend
31h · 2 stationsPM2.516.27 µg/m³
×1.1 WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX24.9
Extreme
What is the 7-day forecast for Harlingen?
07-21
38.0° 25.6°
07-22
37.7° 25.6°
07-23
37.4° 24.6°
1.94 mm
07-24
38.1° 26.7°
07-25
37.0° 24.7°
07-26
37.7° 27.1°
07-27
34.3° 24.4°
9.19 mm
Both models agree
Avg diff: 1.4°C
What cities are near Harlingen?
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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 2026-07-21T20:15 UTC.