Hourly Weather | Today Monday, September 21, 2026
Active Weather Warnings
Charleston, West Virginia
12 PM
Cloudy Weather
79°
Feels Like 86°
49
Humidity: 79%
UV Index: 1
Wind: 6 mph
1 PM
Stormy Weather
81°
Feels Like 84°
65
Humidity: 76%
UV Index: 1
Wind: 6 mph
2 PM
Cloudy Weather
82°
Feels Like 90°
49
Humidity: 70%
UV Index: 1
Wind: 6 mph
3 PM
Cloudy Weather
84°
Feels Like 90°
49
Humidity: 67%
UV Index: 1
Wind: 6 mph
4 PM
Stormy Weather
81°
Feels Like 86°
62
Humidity: 83%
UV Index: 1
Wind: 6 mph
5 PM
Cloudy Weather
79°
Feels Like 84°
49
Humidity: 78%
UV Index: 1
Wind: 6 mph
6 PM
Stormy Weather
77°
Feels Like 81°
65
Humidity: 82%
UV Index: 0
Wind: 6 mph
7 PM
Cloudy Weather
75°
Feels Like 81°
49
Humidity: 86%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Weather
75°
Feels Like 79°
34
Humidity: 88%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Weather
72°
Feels Like 75°
34
Humidity: 92%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Weather
70°
Feels Like 72°
37
Humidity: 97%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Weather
68°
Feels Like 70°
43
Humidity: 97%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.6 µg/m³
  • PM10: 4.92 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

1 PM
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.74 µg/m³
  • PM10: 5.13 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.69 µg/m³
  • PM10: 5.09 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

3 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.91 µg/m³
  • PM10: 5.28 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.26 µg/m³
  • PM10: 5.61 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.46 µg/m³
  • PM10: 5.78 µg/m³
  • O3: 0.029 ppm
  • NO2: 1.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

6 PM
23 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.41 µg/m³
  • PM10: 5.67 µg/m³
  • O3: 0.025 ppm
  • NO2: 2 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

7 PM
23 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.51 µg/m³
  • PM10: 5.75 µg/m³
  • O3: 0.022 ppm
  • NO2: 2.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

8 PM
24 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.64 µg/m³
  • PM10: 5.87 µg/m³
  • O3: 0.020 ppm
  • NO2: 2 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

9 PM
22 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.39 µg/m³
  • PM10: 5.6 µg/m³
  • O3: 0.017 ppm
  • NO2: 2 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

10 PM
21 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.95 µg/m³
  • PM10: 5.15 µg/m³
  • O3: 0.013 ppm
  • NO2: 2 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

11 PM
19 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.62 µg/m³
  • PM10: 4.8 µg/m³
  • O3: 0.010 ppm
  • NO2: 2 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Charleston

Severe Future Possible

Flood Watch

Flood Watch issued September 21 at 4:37AM EDT until September 21 at 12:00PM EDT by NWS Charleston WV
Sep 21, 4:37 AM Sep 21, 12:00 PM
WHAT: Flash flooding caused by excessive rainfall continues to be
possible.

WHERE: Portions of southeast Ohio, including the following
counties, Athens, Gallia, Jackson OH, Lawrence OH, Meigs, Morgan,
Perry, Vinton and Washington and West Virginia, including the
following counties, Barbour, Boone, Braxton, Cabell, Calhoun, Clay,
Doddridge, Gilmer, Harrison, Jackson WV, Kanawha, Lewis, Lincoln,
Mason, Northwest Fayette, Northwest Nicholas, Northwest Pocahontas,
Northwest Randolph, Northwest Webster, Pleasants, Putnam, Ritchie,
Roane, Southeast Fayette, Southeast Nicholas, Southeast Pocahontas,
Southeast Randolph, Southeast Webster, Taylor, Tyler, Upshur, Wirt
and Wood.

WHEN: Until noon EDT today.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

ADDITIONAL DETAILS:
- Slow moving heavy showers and thunderstorms will continue to move
through the region through late this morning. Areas which have
previously received heavy rain will be most vulnerable to
additional flooding.
- http://www.weather.gov/safety/flood
+ Read More
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Additional information can be found at https://www.weather.gov/rlx as well as on our X and Facebook pages.
Updated: Sep 21, 9:34 AM Source: NWS Alert