Hourly Weather | Today Wednesday, March 18, 2026
Plano, Texas
8 AM
Cloudy Weather
48°
Feels Like 41°
0
Humidity: 53%
UV Index: 1
Wind: 15 mph
9 AM
Cloudy Weather
48°
Feels Like 43°
0
Humidity: 56%
UV Index: 2
Wind: 16 mph
10 AM
Cloudy Weather
54°
Feels Like 50°
0
Humidity: 49%
UV Index: 3
Wind: 16 mph
11 AM
Cloudy Weather
59°
Feels Like 57°
0
Humidity: 43%
UV Index: 5
Wind: 16 mph
12 PM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 39%
UV Index: 6
Wind: 17 mph
1 PM
Cloudy Weather
66°
Feels Like 70°
0
Humidity: 36%
UV Index: 7
Wind: 18 mph
2 PM
Cloudy Weather
72°
Feels Like 72°
0
Humidity: 33%
UV Index: 6
Wind: 17 mph
3 PM
Cloudy Weather
73°
Feels Like 73°
0
Humidity: 30%
UV Index: 5
Wind: 17 mph
4 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 30%
UV Index: 3
Wind: 17 mph
5 PM
Cloudy Weather
77°
Feels Like 75°
0
Humidity: 29%
UV Index: 2
Wind: 16 mph
6 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 31%
UV Index: 1
Wind: 15 mph
7 PM
Cloudy Weather
73°
Feels Like 70°
0
Humidity: 34%
UV Index: 0
Wind: 14 mph
8 PM
Cloudy Night
72°
Feels Like 68°
0
Humidity: 38%
UV Index: 0
Wind: 9 mph
9 PM
Cloudy Night
70°
Feels Like 66°
0
Humidity: 41%
UV Index: 0
Wind: 9 mph
10 PM
Cloudy Night
66°
Feels Like 63°
0
Humidity: 45%
UV Index: 0
Wind: 9 mph
11 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 48%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

8 AM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.67 µg/m³
  • PM10: 4.98 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 AM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.25 µg/m³
  • PM10: 4.76 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.99 µg/m³
  • PM10: 4.79 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM
56 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.08 µg/m³
  • PM10: 5.41 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

12 PM
61 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.35 µg/m³
  • PM10: 6.06 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

1 PM
65 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.87 µg/m³
  • PM10: 6.87 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

2 PM
72 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.44 µg/m³
  • PM10: 7.84 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

3 PM
74 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.72 µg/m³
  • PM10: 8.35 µg/m³
  • O3: 0.062 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
73 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.9 µg/m³
  • PM10: 8.65 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
72 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.19 µg/m³
  • PM10: 9.06 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
65 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.43 µg/m³
  • PM10: 9.36 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
57 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.57 µg/m³
  • PM10: 9.57 µg/m³
  • O3: 0.056 ppm
  • NO2: 1.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 PM
50 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.73 µg/m³
  • PM10: 9.82 µg/m³
  • O3: 0.054 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.94 µg/m³
  • PM10: 10.15 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.17 µg/m³
  • PM10: 10.45 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.24 µg/m³
  • PM10: 10.52 µg/m³
  • O3: 0.051 ppm
  • NO2: 1.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.