Houston
Houston, Texas
Updated: May 9, 2026, 10:00 AM
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Data unavailable
Current Weather
25.3°C
Temperature
67%
Humidity
12.1
mph wind
Overcast
Conditions
Pollutant Breakdown
—
PM2.5
µg/m³ · Fine particles
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PM10
µg/m³ · Coarse particles
12.1
Ozone
ppb · Ground-level ozone
4.1
NO₂
ppb · Nitrogen dioxide
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SO₂
ppb · Sulfur dioxide
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CO
ppm · Carbon monoxide
PM2.5 Forecast (next 7 days)
Sat
5/9
43
avg
Sun
5/10
44
avg
Mon
5/11
17
avg
Tue
5/12
48
avg
Wed
5/13
64
avg
Thu
5/14
57
avg
Fri
5/15
41
avg
Data from: Texas Commission on Environmental Quality (TCEQ), Air Now - US EPA, World Air Quality Index Project
Is the air safe in Houston today?
Real-time air quality data for Houston is currently unavailable. Please check back shortly.
The AQI scale runs from 0 to 500. Values of 0–50 are Good, 51–100 are Moderate, 101–150 are Unhealthy for Sensitive Groups, 151–200 are Unhealthy, 201–300 are Very Unhealthy, and 301–500 are Hazardous.
Air quality in Houston, Texas is monitored by local environmental agencies and reported through the World Air Quality Index project. Data is updated hourly and includes PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide.
AQI Scale Reference
0–50
Good
51–100
Moderate
101–150
Unhealthy for Sensitive Groups
151–200
Unhealthy
201–300
Very Unhealthy
301+
Hazardous