Today | Weather | Wednesday, March 18, 2026

Weather in North Charleston, South Carolina

10:58 AM
Now
Cloudy Weather
46° F
Feels Like 48°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 4
Humidity 46 %
Today
Cloudy Weather
Day 59°
Night 37°
Precipitation 1 %
Wind 7 mph
UV Index (0 - 11+) 6

North Charleston Weather Forecast Updated

8 minutes ago
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
62 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.83 µg/m³
PM10 3.38 µg/m³
O3 0.058 ppm
NO2 1 ppb
SO2 0.9 ppb
CO 0.13 ppm
NH3 1.11 µg/m³
NO 0.32 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)
PM2.51.83 µg/m³
PM103.38 µg/m³
O3113.25 µg/m³
NO21.8 µg/m³
SO22.3 µg/m³
CO154.5 µg/m³
NH31.11 µg/m³
NO0.32 µg/m³