Hourly Weather | Today Sunday, December 14, 2025
Active Weather Warnings
Charleston, South Carolina
4 PM
Cloudy Weather
61°
Feels Like 55°
20
Humidity: 45%
Wind: 16 mph
UV Index: 1
5 PM
Cloudy Weather
55°
Feels Like 48°
20
Humidity: 46%
Wind: 16 mph
UV Index: 0
6 PM
Cloudy Night
48°
Feels Like 39°
13
Humidity: 50%
Wind: 16 mph
UV Index: 0
7 PM
Night
43°
Feels Like 30°
0
Humidity: 50%
Wind: 18 mph
UV Index: 0
8 PM
Night
39°
Feels Like 28°
0
Humidity: 47%
Wind: 17 mph
UV Index: 0
9 PM
Night
37°
Feels Like 25°
0
Humidity: 48%
Wind: 17 mph
UV Index: 0
10 PM
Night
36°
Feels Like 19°
0
Humidity: 49%
Wind: 17 mph
UV Index: 0
11 PM
Night
32°
Feels Like 18°
0
Humidity: 50%
Wind: 17 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

4 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.31 µg/m³
  • PM10: 5.53 µg/m³
  • O3: 0.039 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.4 µg/m³
  • PM10: 5.66 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.05 µg/m³
  • PM10: 5.45 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.23 µg/m³
  • PM10: 4.78 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.14 µg/m³
  • PM10: 3.84 µg/m³
  • O3: 0.041 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.37 µg/m³
  • PM10: 3.35 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.96 µg/m³
  • PM10: 3.26 µg/m³
  • O3: 0.047 ppm
  • NO2: 1 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.8 µg/m³
  • PM10: 3.39 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Weather Alerts and Warnings for Charleston

Extreme Future Likely

Extreme Cold Watch

Extreme Cold Watch issued December 13 at 6:37PM EST until December 15 at 10:00AM EST by NWS Charleston SC
Dec 14, 10:00 PM Dec 15, 10:00 AM
WHAT: Dangerously cold wind chills near 10 degrees possible.

WHERE: In Georgia, Jenkins and Screven Counties. In South
Carolina, Allendale, Charleston, Dorchester, Hampton, Inland
Colleton, and Tidal Berkeley Counties.

WHEN: From Sunday evening through Monday morning.

IMPACTS: Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures.
+ Read More
Dress in layers including a hat, face mask, and gloves if you must go outside. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.
Updated: Dec 14, 12:06 AM Source: NWS Alert
Moderate Expected Likely

Cold Weather Advisory

Cold Weather Advisory issued December 14 at 12:30PM EST until December 15 at 10:00AM EST by NWS Charleston SC
Dec 14, 10:00 PM Dec 15, 10:00 AM
WHAT: Very cold wind chills as low as 11 to 15 above expected.

WHERE: In Georgia, Jenkins and Screven Counties. In South
Carolina, Allendale, Charleston, Dorchester, Hampton, Inland
Colleton, and Tidal Berkeley Counties.

WHEN: From 10 PM this evening to 10 AM EST Monday.

IMPACTS: Very cold temperatures could lead to hypothermia during
prolonged exposure.
+ Read More
Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.
Updated: Dec 14, 1:48 PM Source: NWS Alert