Today | Weather | Wednesday, April 1, 2026

Weather in Charleston, South Carolina

03:11 PM
Now
Cloudy Weather
70° F
Feels Like 73°
Precipitation 0 %
Wind 10 mph
UV Index (0 - 11+) 5
Humidity 62 %
Today
Cloudy Weather
Day 73°
Night 59°
Precipitation 10 %
Wind 7 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

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.

Charleston Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 1, 2025)
Cloudy Weather

Day

72°

Night

63°

Wind

8 mph

UV Index

8

Precipitation

1 %

Air Quality in Charleston

NOW
44 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.73 µg/m³
PM10 7.86 µg/m³
O3 0.048 ppm
NO2 0.3 ppb
SO2 0.2 ppb
CO 0.12 ppm
NH3 0.01 µg/m³
NO 0.09 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)
PM2.52.73 µg/m³
PM107.86 µg/m³
O394.06 µg/m³
NO20.6 µg/m³
SO20.43 µg/m³
CO133.64 µg/m³
NH30.01 µg/m³
NO0.09 µg/m³