Charleston County, South Carolina, United States

Last updated: 6:03 PM CDT  ·  Refresh
26°C
Feels like 28°
Clear
▲ 27°  /  ▼ 19°
Wind
5 mph NW
Humidity
72%
Dew Point
20°
Pressure
29.94 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
9%
Sunrise
7:21 AM
Sunset
6:49 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Charleston County is currently clear at 26°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:21AM · Sunset: 6:49PM.

Alerts

No active alerts for this location.
49 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
3%
8 PM
23°
3%
9 PM
23°
3%
10 PM
22°
3%
11 PM
22°
3%
12 AM
22°
3%
1 AM
22°
3%
2 AM
22°
3%
3 AM
22°
3%
4 AM
21°
3%
5 AM
21°
3%
6 AM
20°
3%
7 AM
20°
3%
8 AM
20°
3%
9 AM
22°
3%
10 AM
24°
3%
11 AM
25°
3%
12 PM
26°
3%
1 PM
26°
3%
2 PM
27°
3%
3 PM
27°
3%
4 PM
26°
3%
5 PM
26°
3%
6 PM
25°
3%
7-Day Forecast
Tonight
27° 19°
Clear.
Tue
28° 20°
Clear.
Wed
27° 21°
Mostly Clear.
Thu
27° 20°
Partly Cloudy.
Fri
29° 21°
Clear.
Sat
23° 13°
Clear.
Sun
21° 12°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 3% 5 mph NW 72%
8 PM 23° Clear 3% 4 mph NW 78%
9 PM 23° Clear 3% 3 mph NW 79%
10 PM 22° Mostly Clear 3% 4 mph WNW 79%
11 PM 22° Mostly Clear 3% 3 mph NW 79%
12 AM 22° Mostly Clear 3% 3 mph NW 79%
1 AM 22° Mostly Clear 3% 4 mph NW 79%
2 AM 22° Partly Cloudy 3% 4 mph NW 79%
3 AM 22° Partly Cloudy 3% 4 mph NW 80%
4 AM 21° Mostly Clear 3% 4 mph NNW 80%
5 AM 21° Clear 3% 5 mph NNW 81%
6 AM 20° Clear 3% 4 mph NNW 82%
7 AM 20° Clear 3% 5 mph N 84%
8 AM 20° Clear 3% 4 mph N 85%
9 AM 22° Clear 3% 4 mph N 80%
10 AM 24° Clear 3% 3 mph NNE 75%
11 AM 25° Clear 3% 3 mph NE 70%
12 PM 26° Clear 3% 3 mph NE 69%
1 PM 26° Clear 3% 3 mph ENE 68%
2 PM 27° Clear 3% 3 mph E 68%
3 PM 27° Clear 3% 4 mph ESE 70%
4 PM 26° Clear 3% 4 mph ESE 72%
5 PM 26° Clear 3% 4 mph SE 74%
6 PM 25° Clear 3% 4 mph SSE 77%
15-Day Forecast
Today
10/12
Clear
3%
19°
27°
Tue
10/13
Clear
3%
20°
28°
Wed
10/14
Mostly Clear
19%
21°
27°
Thu
10/15
Partly Cloudy
3%
20°
27°
Fri
10/16
Clear
14%
21°
29°
Sat
10/17
Clear
9%
13°
23°
Sun
10/18
Clear
19%
12°
21°
Mon
10/19
Clear
19%
15°
24°
Tue
10/20
Drizzle
60%
18°
23°
Wed
10/21
Drizzle
60%
18°
25°
Thu
10/22
Drizzle
60%
15°
23°
Fri
10/23
Clear
60%
18°
24°
Sat
10/24
Drizzle
60%
18°
24°
Sun
10/25
Drizzle
60%
18°
24°
Mon
10/26
Drizzle
60%
18°
23°
49
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
49 AQI 8.8 µg/m³
O3
Ground-level ozone
38 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 49 Good 38 49
Wed 52 Moderate 35 52
Thu 42 Good 41 42
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Mon Oct 12, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE57 J/kg
MLCAPE4 J/kg
MUCAPE57 J/kg
SBCIN-360 J/kg
MLCIN0 J/kg
Lifted Index0.6
Kinematics
0–6 km Shear18 kt
0–1 km Shear10 kt
Eff. Shear—
0–1 km SRH47
0–3 km SRH73
Eff. SRH—
Storm Motion26° @ 22 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index11.7
Thermo & Levels
PWAT1.18 in
0–3 km LR5.3 °C/km
700–500 LR5.6 °C/km
Total Totals37.7
LCL931 hPa
LFC471 hPa
EL358 hPa
Freezing Lvl16,827 ft