Hourly Weather | Today Tuesday, July 21, 2026
Rock Hill, South Carolina
5 AM
Cloudy Night
73°
Feels Like 79°
5
Humidity: 98%
UV Index: 0
Wind: 6 mph
6 AM
Cloudy Night
73°
Feels Like 79°
5
Humidity: 96%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Weather
75°
Feels Like 82°
3
Humidity: 93%
UV Index: 1
Wind: 6 mph
8 AM
Cloudy Weather
75°
Feels Like 86°
0
Humidity: 91%
UV Index: 2
Wind: 6 mph
9 AM
Cloudy Weather
79°
Feels Like 90°
0
Humidity: 83%
UV Index: 3
Wind: 7 mph
10 AM
Cloudy Weather
82°
Feels Like 93°
0
Humidity: 76%
UV Index: 5
Wind: 8 mph
11 AM
Cloudy Weather
84°
Feels Like 99°
0
Humidity: 69%
UV Index: 8
Wind: 8 mph
12 PM
Cloudy Weather
88°
Feels Like 100°
0
Humidity: 62%
UV Index: 10
Wind: 9 mph
1 PM
Cloudy Weather
90°
Feels Like 102°
0
Humidity: 57%
UV Index: 11
Wind: 9 mph
2 PM
Cloudy Weather
91°
Feels Like 102°
1
Humidity: 52%
UV Index: 10
Wind: 9 mph
3 PM
Cloudy Weather
91°
Feels Like 100°
1
Humidity: 49%
UV Index: 7
Wind: 10 mph
4 PM
Cloudy Weather
93°
Feels Like 100°
1
Humidity: 46%
UV Index: 5
Wind: 10 mph
5 PM
Cloudy Weather
91°
Feels Like 97°
1
Humidity: 47%
UV Index: 3
Wind: 10 mph
6 PM
Cloudy Weather
91°
Feels Like 95°
1
Humidity: 48%
UV Index: 2
Wind: 9 mph
7 PM
Cloudy Weather
90°
Feels Like 93°
1
Humidity: 52%
UV Index: 1
Wind: 8 mph
8 PM
Cloudy Weather
88°
Feels Like 91°
0
Humidity: 58%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
84°
Feels Like 90°
0
Humidity: 65%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
82°
Feels Like 88°
0
Humidity: 71%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
82°
Feels Like 86°
0
Humidity: 73%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.33 µg/m³
  • PM10: 5.85 µg/m³
  • O3: 0.022 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.74 µg/m³
  • PM10: 6.45 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.19 µg/m³
  • PM10: 7.12 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.67 µg/m³
  • PM10: 7.82 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.04 µg/m³
  • PM10: 8.29 µg/m³
  • O3: 0.023 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.

10 AM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.18 µg/m³
  • PM10: 8.4 µg/m³
  • O3: 0.025 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.

11 AM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.3 µg/m³
  • PM10: 8.39 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.54 µg/m³
  • PM10: 4.51 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.01 µg/m³
  • PM10: 2.51 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.56 µg/m³
  • PM10: 1.93 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 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: 1.3 µg/m³
  • PM10: 1.59 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 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: 1.16 µg/m³
  • PM10: 1.4 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.08 µg/m³
  • PM10: 1.28 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.02 µg/m³
  • PM10: 1.19 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.98 µg/m³
  • PM10: 1.11 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.95 µg/m³
  • PM10: 1.07 µg/m³
  • O3: 0.031 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 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: 0.99 µg/m³
  • PM10: 1.12 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.15 µg/m³
  • PM10: 1.31 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 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: 1.32 µg/m³
  • PM10: 1.52 µg/m³
  • O3: 0.029 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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