What is the air quality in Harlingen today?

The current Air Quality Index (AQI) in Harlingen is 20 (Good). PM2.5 concentration is 4.75 µg/m³.

What is the temperature in Harlingen right now?

The current temperature in Harlingen is 25.0°C (feels like 25.0°C). Humidity is 62.1% and wind speed is 66.3 km/h.

Is it safe to go outside in Harlingen?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Harlingen, United States

Windy

25.0°C · 62.1% humidity

25.0°

Feels 25.0°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 12 stn

View full history →

Harlingen's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

62.1%

Humidity

66.3 km/h

Wind E

1015.9 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.75 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Harlingen?

Temperature & Precipitation

PM2.5 Trend

46h · 12 stations

PM2.54.75 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Both models agree Avg diff: 1.9°C

Where are air quality stations near Harlingen?

Brownsville Sensor #1

27.4 km PM2.5: 3.5 µg/m³

Brownsville Sensor #2

29.5 km PM2.5: 3.8 µg/m³

What cities are near Harlingen?

15 San Benito 25 Mercedes 25 Weslaco 41 Donna 15 Brownsville 15 Heroica Matamoros 41 Alamo 29 Ciudad Río Bravo 41 San Juan 41 Edinburg

Get AQI alerts for Harlingen

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-10-20T23:42 UTC.