Today | Weather | Tuesday, January 13, 2026

Weather in Mount Pleasant, South Carolina

04:52 PM
Now
Cloudy Weather
55° F
Feels Like 54°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 0
Humidity 47 %
Today
Cloudy Weather
Day 57°
Night 41°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 3

Mount Pleasant Weather Forecast Updated

42 minutes ago
Last updated on

Air Quality in Mount Pleasant

NOW
43 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 6 µg/m³
PM10 7.72 µg/m³
O3 0.047 ppm
NO2 2.2 ppb
SO2 0.7 ppb
CO 0.14 ppm
NH3 0.15 µg/m³
NO 0.28 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)
PM2.56 µg/m³
PM107.72 µg/m³
O391.59 µg/m³
NO24.15 µg/m³
SO21.9 µg/m³
CO162.05 µg/m³
NH30.15 µg/m³
NO0.28 µg/m³