Charleston, South Carolina

Last updated: 5:11 AM CDT · Refresh

26°C

Feels like 29°

Mostly Clear

▲ 34° / ▼ 26°

Wind

5 mph WSW

Humidity

86%

Dew Point

24°

Pressure

30.07 inHg

Visibility

10 mi

UV Index

0.0

Cloud Cover

13%

Sunrise

6:40 AM

Sunset

8:08 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Charleston is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3421 J/kg) — isolated convective development possible. Sunrise: 6:40AM · Sunset: 8:08PM.

38 AQI · Good Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

26°

7 AM

26°

24%

8 AM

26°

24%

9 AM

28°

25%

10 AM

30°

25%

11 AM

32°

25%

12 PM

32°

23%

1 PM

33°

21%

2 PM

33°

23%

3 PM

33°

23%

4 PM

33°

21%

5 PM

32°

21%

6 PM

31°

21%

7 PM

30°

25%

8 PM

29°

25%

9 PM

28°

26%

10 PM

28°

26%

11 PM

27°

23%

12 AM

27°

24%

1 AM

27°

15%

2 AM

27°

10%

3 AM

26°

10%

4 AM

26°

10%

5 AM

26°

11%

7-Day Forecast

Today

34° 26°

Partly Cloudy with a 26% chance of rain.

Wed

37° 26°

Mostly Clear with a 46% chance of rain.

Thu

37° 27°

Partly Cloudy with a 28% chance of rain.

Fri

37° 27°

Partly Cloudy with a 75% chance of rain.

Sat

35° 26°

Rain, 74% chance.

Sun

34° 27°

Mostly Cloudy with a 56% chance of rain.

Mon

37° 27°

Mostly Clear with a 31% chance of rain.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 26° Mostly Clear 9% 5 mph WSW 86%

7 AM 26° Mostly Clear 24% 5 mph WSW 83%

8 AM 26° Partly Cloudy 24% 5 mph WSW 81%

9 AM 28° Partly Cloudy 25% 6 mph WSW 75%

10 AM 30° Partly Cloudy 25% 6 mph WSW 68%

11 AM 32° Partly Cloudy 25% 6 mph WSW 62%

12 PM 32° Mostly Cloudy 23% 6 mph WSW 60%

1 PM 33° Mostly Cloudy 21% 6 mph SW 58%

2 PM 33° Mostly Cloudy 23% 7 mph SW 56%

3 PM 33° Mostly Cloudy 23% 8 mph SSW 58%

4 PM 33° Partly Cloudy 21% 9 mph SSW 59%

5 PM 32° Partly Cloudy 21% 10 mph SSW 62%

6 PM 31° Partly Cloudy 21% 9 mph SSW 65%

7 PM 30° Partly Cloudy 25% 8 mph SSW 69%

8 PM 29° Partly Cloudy 25% 8 mph SW 72%

9 PM 28° Partly Cloudy 26% 8 mph SW 72%

10 PM 28° Partly Cloudy 26% 8 mph SW 72%

11 PM 27° Partly Cloudy 23% 8 mph WSW 71%

12 AM 27° Partly Cloudy 24% 8 mph WSW 71%

1 AM 27° Partly Cloudy 15% 7 mph WSW 72%

2 AM 27° Partly Cloudy 10% 7 mph WSW 74%

3 AM 26° Mostly Clear 10% 7 mph WSW 75%

4 AM 26° Mostly Clear 10% 7 mph WSW 76%

5 AM 26° Mostly Clear 11% 6 mph WSW 77%

15-Day Forecast

Today

8/11

Partly Cloudy

26%

26°

34°

Wed

8/12

Mostly Clear

46%

26°

37°

Thu

8/13

Partly Cloudy

28%

27°

37°

Fri

8/14

Partly Cloudy

75%

27°

37°

Sat

8/15

Rain

74%

26°

35°

Sun

8/16

Mostly Cloudy

56%

27°

34°

Mon

8/17

Mostly Clear

31%

27°

37°

Tue

8/18

Rain

90%

27°

36°

Wed

8/19

Drizzle

66%

26°

34°

Thu

8/20

Drizzle

47%

26°

33°

Fri

8/21

Drizzle

60%

26°

34°

Sat

8/22

Rain

90%

26°

34°

Sun

8/23

Drizzle

60%

26°

33°

Mon

8/24

Drizzle

60%

26°

34°

Tue

8/25

Drizzle

60%

26°

33°

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

PM_2.5

Fine particulate matter

Dominant

38 AQI 6.8 µg/m³

O₃

Ground-level ozone

29 AQI 31 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 38 Good 29 38

Wed 43 Good 27 43

Thu 43 Good 37 43

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. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio

RAP

Valid Tue Aug 11, 08:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE1270 J/kg

MLCAPE498 J/kg

MUCAPE1270 J/kg

SBCIN-213 J/kg

MLCIN0 J/kg

Lifted Index-4.5

Kinematics

0–6 km Shear11 kt

0–1 km Shear13 kt

Eff. Shear11 kt

0–1 km SRH58

0–3 km SRH61

Eff. SRH61

Storm Motion351° @ 11 kt

0–1 km EHI0.5

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index28.9

Thermo & Levels

PWAT1.59 in

0–3 km LR5.0 °C/km

700–500 LR6.1 °C/km

Total Totals43.0

LCL992 hPa

LFC761 hPa

EL179 hPa

Freezing Lvl15,755 ft

Charleston, South Carolina

Alerts