Air Quality in Charleston, United States
Drizzle
29.3°C · 59.5% humidity
29.3°
Feels 33.3°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Charleston's air quality — share it
AQI Forecast
25
10am
25
25
30
1pm
31
30
29
4pm
35
35
55
7pm
34
54
54
10pm
54
54
54
1am
34
34
34
4am
27
27
27
7am
27
34
Air Quality Index Trend
17h · 1 stnCharleston's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
59.5%
Humidity
72.8 km/h
Wind ESE
1011.8 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.1 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Charleston?
Temperature & Precipitation
PM2.5 Trend
17h · 1 stationPM2.57.1 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX24.9
Extreme
What is the 7-day forecast for Charleston?
07-21
29.3° 22.7°
17.19 mm
07-22
35.3° 23.1°
13.56 mm
07-23
31.5° 22.5°
8.19 mm
07-24
36.0° 23.2°
3.0 mm
07-25
34.6° 24.7°
07-26
35.2° 26.6°
1.5 mm
07-27
30.4° 26.9°
4.81 mm
Both models agree
Avg diff: 3.0°C
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:15 UTC.