Hourly Weather | Today Thursday, May 21, 2026
Winston-Salem, North Carolina
12 PM
Cloudy Weather
84°
Feels Like 97°
7
Humidity: 52%
UV Index: 10
Wind: 5 mph
1 PM
Cloudy Weather
88°
Feels Like 97°
11
Humidity: 41%
UV Index: 8
Wind: 5 mph
2 PM
Cloudy Weather
90°
Feels Like 93°
49
Humidity: 37%
UV Index: 4
Wind: 6 mph
3 PM
Stormy Weather
90°
Feels Like 88°
56
Humidity: 48%
UV Index: 1
Wind: 7 mph
4 PM
Cloudy Weather
88°
Feels Like 88°
49
Humidity: 47%
UV Index: 2
Wind: 8 mph
5 PM
Cloudy Weather
84°
Feels Like 84°
47
Humidity: 46%
UV Index: 1
Wind: 8 mph
6 PM
Stormy Weather
81°
Feels Like 75°
51
Humidity: 59%
UV Index: 0
Wind: 9 mph
7 PM
Cloudy Weather
75°
Feels Like 73°
47
Humidity: 68%
UV Index: 0
Wind: 9 mph
8 PM
Cloudy Weather
75°
Feels Like 73°
49
Humidity: 67%
UV Index: 0
Wind: 8 mph
9 PM
Stormy Weather
73°
Feels Like 68°
66
Humidity: 75%
UV Index: 0
Wind: 8 mph
10 PM
Stormy Weather
70°
Feels Like 64°
66
Humidity: 77%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Weather
68°
Feels Like 66°
40
Humidity: 81%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.8 µg/m³
  • PM10: 6.19 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.67 µg/m³
  • PM10: 5.59 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.54 µg/m³
  • PM10: 5.28 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.4 µg/m³
  • PM10: 5.03 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.06 µg/m³
  • PM10: 4.52 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.7 µg/m³
  • PM10: 4.02 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.61 µg/m³
  • PM10: 3.95 µg/m³
  • O3: 0.043 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 PM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.76 µg/m³
  • PM10: 4.26 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.88 µg/m³
  • PM10: 4.52 µg/m³
  • O3: 0.034 ppm
  • NO2: 3.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.94 µg/m³
  • PM10: 4.51 µg/m³
  • O3: 0.031 ppm
  • NO2: 3.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.05 µg/m³
  • PM10: 4.4 µg/m³
  • O3: 0.029 ppm
  • NO2: 3.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.15 µg/m³
  • PM10: 4.16 µg/m³
  • O3: 0.029 ppm
  • NO2: 3 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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