Charleston, South Carolina

Last updated: 6:03 PM CDT  ·  Refresh
27°C
Feels like 28°
Clear
▲ 28°  /  ▼ 19°
Wind
5 mph NNW
Humidity
66%
Dew Point
20°
Pressure
29.93 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
7%
Sunrise
7:21 AM
Sunset
6:50 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Charleston is currently clear at 26°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:21AM · Sunset: 6:50PM.

Alerts

No active alerts for this location.
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
3%
8 PM
24°
3%
9 PM
24°
3%
10 PM
23°
3%
11 PM
23°
3%
12 AM
22°
3%
1 AM
22°
3%
2 AM
22°
3%
3 AM
22°
3%
4 AM
22°
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
26°
3%
12 PM
26°
3%
1 PM
27°
3%
2 PM
28°
3%
3 PM
27°
3%
4 PM
27°
3%
5 PM
27°
3%
6 PM
26°
3%
7-Day Forecast
Tonight
28° 19°
Clear.
Tue
30° 20°
Clear.
Wed
30° 20°
Mostly Clear with a 20% chance of rain.
Thu
30° 19°
Clear.
Fri
29° 20°
Clear.
Sat
23° 13°
Clear.
Sun
21° 11°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 27° Clear 3% 5 mph NNW 66%
8 PM 24° Clear 3% 4 mph NW 72%
9 PM 24° Clear 3% 4 mph NW 73%
10 PM 23° Mostly Clear 3% 4 mph NW 74%
11 PM 23° Mostly Clear 3% 3 mph NW 74%
12 AM 22° Mostly Clear 3% 3 mph NW 74%
1 AM 22° Partly Cloudy 3% 3 mph NW 75%
2 AM 22° Mostly Clear 3% 4 mph NW 75%
3 AM 22° Mostly Clear 3% 4 mph NW 76%
4 AM 22° Mostly Clear 3% 4 mph NNW 78%
5 AM 21° Clear 3% 4 mph NNW 79%
6 AM 20° Clear 3% 4 mph NNW 79%
7 AM 20° Clear 3% 4 mph NNW 80%
8 AM 20° Clear 3% 4 mph N 81%
9 AM 22° Clear 3% 4 mph N 77%
10 AM 24° Clear 3% 3 mph NNE 71%
11 AM 26° Clear 3% 2 mph NNE 66%
12 PM 26° Clear 3% 2 mph NE 64%
1 PM 27° Clear 3% 3 mph ENE 61%
2 PM 28° Clear 3% 4 mph E 60%
3 PM 27° Mostly Clear 3% 4 mph ESE 61%
4 PM 27° Mostly Clear 3% 4 mph ESE 62%
5 PM 27° Mostly Clear 3% 4 mph SE 64%
6 PM 26° Mostly Clear 3% 4 mph SSE 68%
15-Day Forecast
Today
10/12
Clear
3%
19°
28°
Tue
10/13
Clear
3%
20°
30°
Wed
10/14
Mostly Clear
20%
20°
30°
Thu
10/15
Clear
3%
19°
30°
Fri
10/16
Clear
9%
20°
29°
Sat
10/17
Clear
3%
13°
23°
Sun
10/18
Clear
9%
11°
21°
Mon
10/19
Clear
19%
14°
23°
Tue
10/20
Drizzle
60%
17°
23°
Wed
10/21
Clear
60%
17°
25°
Thu
10/22
Drizzle
60%
14°
24°
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°
52
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
52 AQI 9.4 µg/m³
O3
Ground-level ozone
38 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 52 Moderate 38 52
Wed 54 Moderate 37 54
Thu 48 Good 41 48
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
SBCAPE100 J/kg
MLCAPE3 J/kg
MUCAPE100 J/kg
SBCIN-284 J/kg
MLCIN0 J/kg
Lifted Index0.2
Kinematics
0–6 km Shear18 kt
0–1 km Shear10 kt
Eff. Shear—
0–1 km SRH52
0–3 km SRH77
Eff. SRH—
Storm Motion26° @ 22 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index11.4
Thermo & Levels
PWAT1.18 in
0–3 km LR5.4 °C/km
700–500 LR5.6 °C/km
Total Totals37.3
LCL927 hPa
LFC487 hPa
EL343 hPa
Freezing Lvl16,778 ft