Today | Weather | Wednesday, March 18, 2026

Weather in Rock Hill, South Carolina

04:01 AM
Now
Cloudy Night
34° F
Feels Like 30°
Precipitation 0 %
Wind 6 mph
Humidity 47 %
Today
Cloudy Weather
Day 50°
Night 32°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 6

Rock Hill Weather Forecast Updated

Last updated on

Air Quality in Rock Hill

NOW
42 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.62 µg/m³
PM10 4.49 µg/m³
O3 0.046 ppm
NO2 1.7 ppb
SO2 0.5 ppb
CO 0.15 ppm
NH3 2.04 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

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

Show raw pollutant concentrations (µg/m³)
PM2.52.62 µg/m³
PM104.49 µg/m³
O390 µg/m³
NO23.29 µg/m³
SO21.24 µg/m³
CO170.47 µg/m³
NH32.04 µg/m³
NO0 µg/m³