Hourly Weather | Today Wednesday, May 20, 2026
Rock Hill, South Carolina
7 PM
Cloudy Weather
88°
Feels Like 88°
0
Humidity: 40%
UV Index: 1
Wind: 6 mph
8 PM
Cloudy Weather
84°
Feels Like 82°
0
Humidity: 45%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
81°
Feels Like 79°
0
Humidity: 51%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
79°
Feels Like 75°
0
Humidity: 56%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
75°
Feels Like 73°
0
Humidity: 62%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.49 µg/m³
  • PM10: 6.27 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.58 µg/m³
  • PM10: 6.5 µg/m³
  • O3: 0.043 ppm
  • NO2: 2 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.58 µg/m³
  • PM10: 6.59 µg/m³
  • O3: 0.039 ppm
  • NO2: 2.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.53 µg/m³
  • PM10: 6.55 µg/m³
  • O3: 0.037 ppm
  • NO2: 2 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.4 µg/m³
  • PM10: 6.35 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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