Charleston, South Carolina

Last updated: 6:23 PM CDT  ·  Refresh
32°C
Feels like 39°
Mostly Clear
▲ 33°  /  ▼ 26°
Wind
7 mph S
Humidity
70%
Dew Point
25°
Pressure
29.73 inHg
Visibility
10 mi
UV Index
2.8
Cloud Cover
25%
Sunrise
6:31 AM
Sunset
8:20 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Charleston is currently mostly clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2914 J/kg) — isolated convective development possible. Sunrise: 6:31AM · Sunset: 8:20PM.

Alerts

No active alerts for this location.
57 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
31%
8 PM
30°
46%
9 PM
28°
46%
10 PM
28°
45%
11 PM
28°
35%
12 AM
28°
33%
1 AM
27°
33%
2 AM
27°
15%
3 AM
26°
15%
4 AM
26°
15%
5 AM
26°
7%
6 AM
26°
4%
7 AM
26°
5%
8 AM
27°
3%
9 AM
29°
5%
10 AM
30°
5%
11 AM
31°
5%
12 PM
32°
5%
1 PM
33°
8%
2 PM
34°
8%
3 PM
34°
10%
4 PM
33°
13%
5 PM
32°
19%
6 PM
32°
19%
7-Day Forecast
Tonight
33° 26°
Mostly Clear with a 45% chance of rain.
Thu
36° 26°
Clear with a 33% chance of rain.
Fri
34° 26°
Mostly Clear with a 27% chance of rain.
Sat
33° 27°
Partly Cloudy with a 60% chance of rain.
Sun
32° 27°
Rain, 71% chance.
Mon
32° 26°
Rain, 83% chance.
Tue
32° 26°
Rain, 83% chance.
TimeTempConditionsPrecipWindHumidity
Now 32° Mostly Clear 31% 7 mph S 70%
8 PM 30° Mostly Clear 46% 8 mph S 78%
9 PM 28° Mostly Clear 46% 8 mph S 80%
10 PM 28° Clear 45% 7 mph SSW 83%
11 PM 28° Mostly Clear 35% 6 mph SSW 84%
12 AM 28° Partly Cloudy 33% 5 mph SW 84%
1 AM 27° Mostly Clear 33% 5 mph WSW 84%
2 AM 27° Mostly Clear 15% 5 mph W 83%
3 AM 26° Clear 15% 5 mph NW 83%
4 AM 26° Clear 15% 5 mph NNW 82%
5 AM 26° Clear 7% 5 mph N 81%
6 AM 26° Clear 4% 6 mph N 79%
7 AM 26° Clear 5% 7 mph NNE 76%
8 AM 27° Clear 3% 7 mph NNE 72%
9 AM 29° Clear 5% 7 mph NNE 65%
10 AM 30° Clear 5% 6 mph NE 58%
11 AM 31° Clear 5% 6 mph NE 54%
12 PM 32° Mostly Clear 5% 5 mph ENE 52%
1 PM 33° Mostly Clear 8% 4 mph E 51%
2 PM 34° Mostly Clear 8% 5 mph ESE 50%
3 PM 34° Mostly Clear 10% 5 mph ESE 50%
4 PM 33° Clear 13% 5 mph SE 50%
5 PM 32° Clear 19% 5 mph SE 51%
6 PM 32° Clear 19% 5 mph SE 54%
15-Day Forecast
Today
7/29
Mostly Clear
45%
26°
33°
Thu
7/30
Clear
33%
26°
36°
Fri
7/31
Mostly Clear
27%
26°
34°
Sat
8/1
Partly Cloudy
60%
27°
33°
Sun
8/2
Rain
71%
27°
32°
Mon
8/3
Rain
83%
26°
32°
Tue
8/4
Rain
83%
26°
32°
Wed
8/5
Rain
66%
26°
33°
Thu
8/6
Rain
73%
26°
32°
Fri
8/7
Rain
72%
26°
32°
Sat
8/8
Rain
64%
26°
33°
Sun
8/9
Drizzle
60%
27°
34°
Mon
8/10
Drizzle
60%
27°
34°
Tue
8/11
Drizzle
60%
27°
34°
Wed
8/12
Drizzle
60%
27°
34°
57
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
57 AQI 12.5 µg/m³
O3
Ground-level ozone
38 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 57 Moderate 38 57
Fri 57 Moderate 41 57
Sat 58 Moderate 39 58
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 Wed Jul 29, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3439 J/kg
MLCAPE3015 J/kg
MUCAPE4254 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-8.1
Kinematics
0–6 km Shear27 kt
0–1 km Shear10 kt
Eff. Shear39 kt
0–1 km SRH-29
0–3 km SRH-102
Eff. SRH-102
Storm Motion258° @ 26 kt
0–1 km EHI-0.6
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index27.5
Thermo & Levels
PWAT1.95 in
0–3 km LR7.0 °C/km
700–500 LR5.9 °C/km
Total Totals48.3
LCL916 hPa
LFC1007 hPa
EL150 hPa
Freezing Lvl16,385 ft