Hourly Weather | Today | Monday, August 18, 2025
Air Quality Alert (Issued when air pollution levels are unhealthy, especially for sensitive groups.)
Houston, Texas
5 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
93°
Feels Like 102°
47
Humidity: 47%
Wind: 6 mph
UV Index: 28
6 PM
Sunny with a Chance of ThunderstormsSunny weather with a possibility of isolated thunderstorms developing later in the day.
91°
Feels Like 97°
51
Humidity: 53%
Wind: 6 mph
UV Index: 16
7 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
91°
Feels Like 97°
43
Humidity: 53%
Wind: 6 mph
UV Index: 5
8 PM
Stormy WeatherStormy weather, thunderstorms.
90°
Feels Like 91°
51
Humidity: 61%
Wind: 7 mph
UV Index: 0
9 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
88°
Feels Like 93°
47
Humidity: 64%
Wind: 7 mph
UV Index: 0
10 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
84°
Feels Like 91°
40
Humidity: 69%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
84°
Feels Like 91°
34
Humidity: 72%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

5 PM
59 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 11.29 µg/m³
  • PM10: 12.47 µg/m³
  • O₃: 75.20 ppb
  • NO₂: 2.69 ppb
  • SO₂: 1.58 ppb
  • CO: 136.41 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

6 PM
78 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 11.62 µg/m³
  • PM10: 12.77 µg/m³
  • O₃: 73.54 ppb
  • NO₂: 3.73 ppb
  • SO₂: 1.65 ppb
  • CO: 144.41 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

7 PM
92 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 13.26 µg/m³
  • PM10: 14.45 µg/m³
  • O₃: 71.87 ppb
  • NO₂: 4.77 ppb
  • SO₂: 1.73 ppb
  • CO: 152.40 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

8 PM
98 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 13.87 µg/m³
  • PM10: 14.90 µg/m³
  • O₃: 62.01 ppb
  • NO₂: 8.07 ppb
  • SO₂: 1.89 ppb
  • CO: 175.80 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

9 PM
97 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 15.42 µg/m³
  • PM10: 16.21 µg/m³
  • O₃: 52.15 ppb
  • NO₂: 11.38 ppb
  • SO₂: 2.05 ppb
  • CO: 199.21 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

10 PM
86 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 16.70 µg/m³
  • PM10: 17.36 µg/m³
  • O₃: 42.30 ppb
  • NO₂: 14.68 ppb
  • SO₂: 2.21 ppb
  • CO: 222.61 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

11 PM
71 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 17.76 µg/m³
  • PM10: 18.38 µg/m³
  • O₃: 36.68 ppb
  • NO₂: 16.05 ppb
  • SO₂: 2.26 ppb
  • CO: 233.67 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.