Hourly Weather | Today Tuesday, July 21, 2026
Roanoke, Virginia
5 AM
Stormy Weather
70°
Feels Like 73°
44
Humidity: 96%
UV Index: 0
Wind: 4 mph
6 AM
Cloudy Night
70°
Feels Like 73°
43
Humidity: 97%
UV Index: 0
Wind: 5 mph
7 AM
Sunny with a Chance of Thunderstorms
72°
Feels Like 73°
51
Humidity: 92%
UV Index: 0
Wind: 4 mph
8 AM
Cloudy Weather
73°
Feels Like 79°
25
Humidity: 88%
UV Index: 1
Wind: 5 mph
9 AM
Cloudy Weather
79°
Feels Like 82°
20
Humidity: 79%
UV Index: 1
Wind: 7 mph
10 AM
Cloudy Weather
81°
Feels Like 86°
20
Humidity: 72%
UV Index: 2
Wind: 8 mph
11 AM
Cloudy Weather
82°
Feels Like 88°
20
Humidity: 67%
UV Index: 2
Wind: 9 mph
12 PM
Cloudy Weather
84°
Feels Like 90°
20
Humidity: 64%
UV Index: 3
Wind: 10 mph
1 PM
Cloudy Weather
86°
Feels Like 91°
25
Humidity: 60%
UV Index: 4
Wind: 12 mph
2 PM
Stormy Weather
84°
Feels Like 88°
51
Humidity: 74%
UV Index: 2
Wind: 12 mph
3 PM
Cloudy Weather
81°
Feels Like 88°
47
Humidity: 73%
UV Index: 3
Wind: 10 mph
4 PM
Cloudy Weather
81°
Feels Like 86°
35
Humidity: 74%
UV Index: 2
Wind: 10 mph
5 PM
Cloudy Weather
81°
Feels Like 86°
19
Humidity: 76%
UV Index: 1
Wind: 9 mph
6 PM
Cloudy Weather
81°
Feels Like 84°
19
Humidity: 77%
UV Index: 1
Wind: 9 mph
7 PM
Cloudy Weather
81°
Feels Like 84°
24
Humidity: 77%
UV Index: 1
Wind: 8 mph
8 PM
Cloudy Weather
81°
Feels Like 84°
46
Humidity: 72%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Weather
81°
Feels Like 84°
49
Humidity: 73%
UV Index: 0
Wind: 7 mph
10 PM
Stormy Weather
81°
Feels Like 81°
54
Humidity: 79%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Weather
79°
Feels Like 81°
46
Humidity: 78%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

5 AM
17 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.83 µg/m³
  • PM10: 4.31 µg/m³
  • O3: 0.018 ppm
  • NO2: 1.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

6 AM
15 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.71 µg/m³
  • PM10: 4.26 µg/m³
  • O3: 0.016 ppm
  • NO2: 1.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

7 AM
15 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.55 µg/m³
  • PM10: 4.17 µg/m³
  • O3: 0.014 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

8 AM
14 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.37 µg/m³
  • PM10: 4.05 µg/m³
  • O3: 0.013 ppm
  • NO2: 2 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 AM
13 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.21 µg/m³
  • PM10: 3.9 µg/m³
  • O3: 0.015 ppm
  • NO2: 2 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.12 µg/m³
  • PM10: 3.83 µg/m³
  • O3: 0.017 ppm
  • NO2: 1.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

11 AM
22 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.38 µg/m³
  • PM10: 4.08 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

12 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.34 µg/m³
  • PM10: 3.81 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

1 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.65 µg/m³
  • PM10: 2.98 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

2 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.02 µg/m³
  • PM10: 2.28 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

3 PM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.49 µg/m³
  • PM10: 1.68 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

4 PM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.14 µg/m³
  • PM10: 1.29 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

5 PM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.91 µg/m³
  • PM10: 1.05 µg/m³
  • O3: 0.031 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

6 PM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.76 µg/m³
  • PM10: 0.92 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

7 PM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.68 µg/m³
  • PM10: 0.87 µg/m³
  • O3: 0.029 ppm
  • NO2: 1.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.61 µg/m³
  • PM10: 0.82 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.57 µg/m³
  • PM10: 0.79 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.56 µg/m³
  • PM10: 0.8 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.56 µg/m³
  • PM10: 0.83 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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