Hourly Weather | Today Friday, September 18, 2026
Active Weather Warnings
Little Rock, Arkansas
4 PM
Cloudy Weather
99°
Feels Like 100°
0
Humidity: 33%
UV Index: 3
Wind: 6 mph
5 PM
Cloudy Weather
97°
Feels Like 99°
0
Humidity: 34%
UV Index: 2
Wind: 6 mph
6 PM
Cloudy Weather
97°
Feels Like 97°
0
Humidity: 36%
UV Index: 1
Wind: 6 mph
7 PM
Cloudy Weather
93°
Feels Like 93°
0
Humidity: 40%
UV Index: 0
Wind: 6 mph
8 PM
Night
90°
Feels Like 91°
0
Humidity: 47%
UV Index: 0
Wind: 6 mph
9 PM
Night
88°
Feels Like 90°
0
Humidity: 54%
UV Index: 0
Wind: 6 mph
10 PM
Night
84°
Feels Like 88°
0
Humidity: 60%
UV Index: 0
Wind: 6 mph
11 PM
Night
82°
Feels Like 84°
0
Humidity: 66%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 5.44 µg/m³
  • PM10: 6.96 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.44 µg/m³
  • PM10: 7.06 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.56 µg/m³
  • PM10: 7.43 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.64 µg/m³
  • PM10: 7.77 µg/m³
  • O3: 0.029 ppm
  • NO2: 2.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 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: 5.69 µg/m³
  • PM10: 8.04 µg/m³
  • O3: 0.024 ppm
  • NO2: 2.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.82 µg/m³
  • PM10: 8.3 µg/m³
  • O3: 0.021 ppm
  • NO2: 2.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.99 µg/m³
  • PM10: 8.52 µg/m³
  • O3: 0.020 ppm
  • NO2: 2.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.17 µg/m³
  • PM10: 8.62 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Little Rock

Moderate Expected Likely

Heat Advisory

Heat Advisory issued September 18 at 3:34AM CDT until September 19 at 8:00PM CDT by NWS Little Rock AR
Sep 18, 3:34 AM Sep 19, 8:00 PM
WHAT: Heat index values up to 109.

WHERE: Portions of central, eastern, north central, southeast, and
western Arkansas.

WHEN: Until 8 PM CDT Saturday.

IMPACTS: Hot temperatures and high humidity may cause heat
illnesses.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Updated: Sep 18, 7:18 AM Source: NWS Alert