Today | Weather | Monday, July 20, 2026

Weather in North Charleston, South Carolina

01:32 AM
Now
Cloudy Night
81° F
Feels Like 90°
Precipitation 7 %
Wind 7 mph
Humidity 89 %
Today
Sunny with a Chance of Thunderstorms
Day 93°
Night 81°
Precipitation 56 %
Wind 10 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.

North Charleston Weather Forecast Updated

26 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (July 20, 2025)
Stormy Weather

Day

97°

Night

79°

Wind

6 mph

Precipitation

40 %

Air Quality in North Charleston

NOW
25 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.62 µg/m³
PM10 6.76 µg/m³
O3 0.027 ppm
NO2 0.3 ppb
SO2 0.1 ppb
CO 0.07 ppm
NH3 0 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)
PM2.51.62 µg/m³
PM106.76 µg/m³
O353.49 µg/m³
NO20.53 µg/m³
SO20.33 µg/m³
CO81.34 µg/m³
NH30 µg/m³
NO0 µg/m³