Today | Weather | Monday, April 27, 2026

Weather in Rock Hill, South Carolina

01:24 PM
Now
Cloudy Weather
64° F
Feels Like 75°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 10
Humidity 49 %
Today
Cloudy Weather
Day 73°
Night 48°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Rock Hill Weather Forecast Updated

20 minutes ago
Last updated on

Air Quality in Rock Hill

NOW
46 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.39 µg/m³
PM10 4.22 µg/m³
O3 0.050 ppm
NO2 0.4 ppb
SO2 0.3 ppb
CO 0.13 ppm
NH3 1.34 µg/m³
NO 0.15 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)
PM2.53.39 µg/m³
PM104.22 µg/m³
O398.21 µg/m³
NO20.67 µg/m³
SO20.7 µg/m³
CO148.35 µg/m³
NH31.34 µg/m³
NO0.15 µg/m³