Hourly Weather | Today Thursday, February 26, 2026
Fort Smith, Arkansas
2 AM
Cloudy Night
50°
Feels Like 48°
0
Humidity: 95%
UV Index: 0
Wind: 6 mph
3 AM
Cloudy Night
50°
Feels Like 48°
0
Humidity: 94%
UV Index: 0
Wind: 6 mph
4 AM
Cloudy Night
50°
Feels Like 48°
0
Humidity: 94%
UV Index: 0
Wind: 5 mph
5 AM
Cloudy Night
50°
Feels Like 50°
0
Humidity: 91%
UV Index: 0
Wind: 4 mph
6 AM
Cloudy Night
52°
Feels Like 52°
0
Humidity: 88%
UV Index: 0
Wind: 4 mph
7 AM
Rainy Weather
52°
Feels Like 52°
44
Humidity: 87%
UV Index: 0
Wind: 4 mph
8 AM
Partly Sunny with Showers
54°
Feels Like 55°
41
Humidity: 85%
UV Index: 1
Wind: 4 mph
9 AM
Cloudy Weather
59°
Feels Like 63°
39
Humidity: 76%
UV Index: 2
Wind: 5 mph
10 AM
Cloudy Weather
63°
Feels Like 66°
19
Humidity: 65%
UV Index: 3
Wind: 6 mph
11 AM
Cloudy Weather
66°
Feels Like 70°
19
Humidity: 57%
UV Index: 3
Wind: 6 mph
12 PM
Cloudy Weather
70°
Feels Like 72°
24
Humidity: 50%
UV Index: 3
Wind: 7 mph
1 PM
Cloudy Weather
72°
Feels Like 73°
34
Humidity: 44%
UV Index: 3
Wind: 7 mph
2 PM
Cloudy Weather
73°
Feels Like 75°
34
Humidity: 39%
UV Index: 3
Wind: 7 mph
3 PM
Cloudy Weather
75°
Feels Like 75°
40
Humidity: 34%
UV Index: 2
Wind: 7 mph
4 PM
Partly Sunny with Showers
73°
Feels Like 70°
47
Humidity: 34%
UV Index: 1
Wind: 7 mph
5 PM
Partly Sunny with Showers
72°
Feels Like 70°
42
Humidity: 35%
UV Index: 0
Wind: 7 mph
6 PM
Cloudy Weather
70°
Feels Like 66°
41
Humidity: 38%
UV Index: 0
Wind: 6 mph
7 PM
Night
64°
Feels Like 63°
0
Humidity: 43%
UV Index: 0
Wind: 6 mph
8 PM
Night
63°
Feels Like 61°
0
Humidity: 48%
UV Index: 0
Wind: 6 mph
9 PM
Night
59°
Feels Like 57°
0
Humidity: 52%
UV Index: 0
Wind: 6 mph
10 PM
Night
57°
Feels Like 55°
0
Humidity: 58%
UV Index: 0
Wind: 5 mph
11 PM
Night
54°
Feels Like 54°
0
Humidity: 63%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

2 AM
36 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.52 µg/m³
  • PM10: 16.29 µg/m³
  • O3: 0.025 ppm
  • NO2: 2.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

3 AM
37 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.78 µg/m³
  • PM10: 16.98 µg/m³
  • O3: 0.024 ppm
  • NO2: 2.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

4 AM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9 µg/m³
  • PM10: 17.69 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

5 AM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.18 µg/m³
  • PM10: 18.02 µg/m³
  • O3: 0.022 ppm
  • NO2: 1.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

6 AM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.31 µg/m³
  • PM10: 18.17 µg/m³
  • O3: 0.020 ppm
  • NO2: 1.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

7 AM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.3 µg/m³
  • PM10: 18.37 µg/m³
  • O3: 0.018 ppm
  • NO2: 2 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

8 AM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.27 µg/m³
  • PM10: 18.92 µg/m³
  • O3: 0.016 ppm
  • NO2: 2.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

9 AM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.24 µg/m³
  • PM10: 19.51 µg/m³
  • O3: 0.016 ppm
  • NO2: 2 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

10 AM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.53 µg/m³
  • PM10: 20.63 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

11 AM
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.75 µg/m³
  • PM10: 20.82 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

12 PM
42 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.18 µg/m³
  • PM10: 21.02 µg/m³
  • O3: 0.029 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.42 µg/m³
  • PM10: 16.95 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.36 µg/m³
  • PM10: 12.2 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

3 PM
52 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.04 µg/m³
  • PM10: 9.43 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
53 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.34 µg/m³
  • PM10: 7.88 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

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

Pollutant Concentrations:

  • PM2.5: 5.26 µg/m³
  • PM10: 7.45 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.61 µg/m³
  • PM10: 7.71 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.13 µg/m³
  • PM10: 8.26 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.71 µg/m³
  • PM10: 8.91 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.04 µg/m³
  • PM10: 9.2 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.92 µg/m³
  • PM10: 8.96 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 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: 6.81 µg/m³
  • PM10: 8.78 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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