Air Quality in Brownsville, United States
Windy
36.5°C · 41.6% humidity
36.5°
Feels 40.8°
80
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station
Nearby Monitoring Stations
Brownsville's air quality — share it
AQI Forecast
54
9am
54
54
80
12pm
73
67
64
3pm
61
59
58
6pm
57
56
55
9pm
55
55
54
12am
54
54
54
3am
54
54
54
6am
54
54
Air Quality Index Trend
40h · 1 stnBrownsville'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 Brownsville is 1.7× the WHO 24-hour guideline of 15 µg/m³.
41.6%
Humidity
106.5 km/h
Wind SSE
1006.1 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
26.0 µg/m³
PM10
34.3 µg/m³
050100150200300500
What is the weather forecast for Brownsville?
Temperature & Precipitation
PM2.5 Trend
40h · 1 stationPM2.526.0 µg/m³
×1.7 WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX24.9
Extreme
Station readings (1 station within 25 km)
26.0
Median
26.0
Average
26.0
Low
26.0
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -15.1
What is the 7-day forecast for Brownsville?
07-21
36.5° 26.5°
07-22
36.0° 26.5°
07-23
36.1° 25.9°
4.0 mm
07-24
36.9° 27.2°
07-25
35.6° 26.5°
07-26
35.8° 27.9°
0.06 mm
07-27
32.1° 24.8°
8.25 mm
Both models agree
Avg diff: 1.2°C
Where are air quality stations near Brownsville?
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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 2026-07-21T17:15 UTC.