Today | Weather | Wednesday, March 18, 2026

Weather in North Charleston, South Carolina

12:22 PM
Now
Cloudy Weather
50° F
Feels Like 55°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 6
Humidity 44 %
Today
Cloudy Weather
Day 59°
Night 37°
Precipitation 1 %
Wind 7 mph
UV Index (0 - 11+) 6

North Charleston Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 18, 2025)
Sunny Weather

Day

73°

Night

43°

Wind

7 mph

UV Index

6

Precipitation

0 %

Air Quality in North Charleston

NOW
66 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.08 µg/m³
PM10 3.64 µg/m³
O3 0.059 ppm
NO2 0.8 ppb
SO2 0.8 ppb
CO 0.13 ppm
NH3 1.04 µg/m³
NO 0.27 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.52.08 µg/m³
PM103.64 µg/m³
O3116.26 µg/m³
NO21.42 µg/m³
SO22.21 µg/m³
CO152.96 µg/m³
NH31.04 µg/m³
NO0.27 µg/m³