Hourly Weather | Today Saturday, September 20, 2025
Active Weather Warnings
Lewisville, Texas
6 AM
Cloudy Night
75°
Feels Like 75°
0
Humidity: 74%
Wind: 7 mph
UV Index: 0
7 AM
Cloudy Night
73°
Feels Like 73°
0
Humidity: 78%
Wind: 7 mph
UV Index: 0
8 AM
Cloudy Weather
75°
Feels Like 77°
0
Humidity: 76%
Wind: 7 mph
UV Index: 10
9 AM
Cloudy Weather
79°
Feels Like 81°
0
Humidity: 70%
Wind: 8 mph
UV Index: 21
10 AM
Cloudy Weather
82°
Feels Like 88°
0
Humidity: 62%
Wind: 9 mph
UV Index: 33
11 AM
Cloudy Weather
86°
Feels Like 91°
0
Humidity: 55%
Wind: 9 mph
UV Index: 46
12 PM
Cloudy Weather
90°
Feels Like 95°
0
Humidity: 49%
Wind: 9 mph
UV Index: 61
1 PM
Cloudy Weather
91°
Feels Like 97°
0
Humidity: 44%
Wind: 9 mph
UV Index: 68
2 PM
Cloudy Weather
93°
Feels Like 97°
0
Humidity: 40%
Wind: 9 mph
UV Index: 61
3 PM
Cloudy Weather
93°
Feels Like 97°
0
Humidity: 38%
Wind: 10 mph
UV Index: 46
4 PM
Cloudy Weather
95°
Feels Like 97°
0
Humidity: 35%
Wind: 10 mph
UV Index: 33
5 PM
Cloudy Weather
93°
Feels Like 93°
0
Humidity: 36%
Wind: 10 mph
UV Index: 21
6 PM
Cloudy Weather
91°
Feels Like 91°
0
Humidity: 38%
Wind: 10 mph
UV Index: 10
7 PM
Cloudy Weather
90°
Feels Like 88°
0
Humidity: 41%
Wind: 10 mph
UV Index: 0
8 PM
Cloudy Night
88°
Feels Like 84°
0
Humidity: 45%
Wind: 9 mph
UV Index: 0
9 PM
Cloudy Night
84°
Feels Like 82°
0
Humidity: 48%
Wind: 9 mph
UV Index: 0
10 PM
Cloudy Night
84°
Feels Like 82°
0
Humidity: 50%
Wind: 8 mph
UV Index: 0
11 PM
Cloudy Night
82°
Feels Like 81°
0
Humidity: 53%
Wind: 8 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

6 AM
75 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 23.21 µg/m³
  • PM10: 23.27 µg/m³
  • O₃: 37.69 ppb
  • NO₂: 10.19 ppb
  • SO₂: 1.42 ppb
  • CO: 315.30 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

7 AM
74 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 21.17 µg/m³
  • PM10: 21.23 µg/m³
  • O₃: 37.47 ppb
  • NO₂: 9.46 ppb
  • SO₂: 1.44 ppb
  • CO: 298.70 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

8 AM
74 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 17.93 µg/m³
  • PM10: 18.02 µg/m³
  • O₃: 37.91 ppb
  • NO₂: 8.98 ppb
  • SO₂: 1.56 ppb
  • CO: 273.91 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

9 AM
73 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 14.80 µg/m³
  • PM10: 14.95 µg/m³
  • O₃: 38.68 ppb
  • NO₂: 8.92 ppb
  • SO₂: 1.72 ppb
  • CO: 249.36 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

10 AM
72 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 12.91 µg/m³
  • PM10: 13.13 µg/m³
  • O₃: 39.54 ppb
  • NO₂: 9.51 ppb
  • SO₂: 1.87 ppb
  • CO: 237.47 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

11 AM
71 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 11.69 µg/m³
  • PM10: 11.97 µg/m³
  • O₃: 45.33 ppb
  • NO₂: 7.81 ppb
  • SO₂: 1.67 ppb
  • CO: 221.23 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

12 PM
70 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.51 µg/m³
  • PM10: 10.86 µg/m³
  • O₃: 51.54 ppb
  • NO₂: 6.04 ppb
  • SO₂: 1.43 ppb
  • CO: 206.75 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

1 PM
70 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.28 µg/m³
  • PM10: 7.71 µg/m³
  • O₃: 61.40 ppb
  • NO₂: 2.98 ppb
  • SO₂: 1.15 ppb
  • CO: 167.29 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

2 PM
69 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.41 µg/m³
  • PM10: 7.86 µg/m³
  • O₃: 62.49 ppb
  • NO₂: 2.90 ppb
  • SO₂: 1.10 ppb
  • CO: 167.83 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

3 PM
68 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.53 µg/m³
  • PM10: 7.97 µg/m³
  • O₃: 63.58 ppb
  • NO₂: 2.82 ppb
  • SO₂: 1.05 ppb
  • CO: 168.38 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

4 PM
67 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.67 µg/m³
  • PM10: 8.11 µg/m³
  • O₃: 64.66 ppb
  • NO₂: 2.74 ppb
  • SO₂: 1.00 ppb
  • CO: 168.92 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

5 PM
67 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.77 µg/m³
  • PM10: 8.19 µg/m³
  • O₃: 62.02 ppb
  • NO₂: 3.97 ppb
  • SO₂: 1.04 ppb
  • CO: 177.76 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

6 PM
66 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.95 µg/m³
  • PM10: 8.35 µg/m³
  • O₃: 59.37 ppb
  • NO₂: 5.21 ppb
  • SO₂: 1.08 ppb
  • CO: 186.59 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

7 PM
68 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 8.40 µg/m³
  • PM10: 8.75 µg/m³
  • O₃: 56.72 ppb
  • NO₂: 6.44 ppb
  • SO₂: 1.13 ppb
  • CO: 195.43 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

8 PM
67 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 9.95 µg/m³
  • PM10: 10.24 µg/m³
  • O₃: 50.36 ppb
  • NO₂: 8.82 ppb
  • SO₂: 1.31 ppb
  • CO: 210.93 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

9 PM
63 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.93 µg/m³
  • PM10: 11.18 µg/m³
  • O₃: 44.00 ppb
  • NO₂: 11.21 ppb
  • SO₂: 1.50 ppb
  • CO: 226.44 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

10 PM
62 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.49 µg/m³
  • PM10: 10.70 µg/m³
  • O₃: 37.65 ppb
  • NO₂: 13.59 ppb
  • SO₂: 1.68 ppb
  • CO: 241.94 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

11 PM
62 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 9.51 µg/m³
  • PM10: 9.72 µg/m³
  • O₃: 38.85 ppb
  • NO₂: 11.92 ppb
  • SO₂: 1.60 ppb
  • CO: 229.51 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

Weather Alerts and Warnings for Lewisville

Air Quality Alert

Air Quality Alert issued September 19 at 2:13PM CDT by NWS Fort Worth TX
Sep 19, 2:13 PM Sep 20, 5:15 PM
AQAFWD

The Texas Commission on Environmental Quality (TCEQ) has issued
an Ozone Action Day for the Dallas-Fort Worth area for Saturday,
September 20, 2025.

Atmospheric conditions are expected to be favorable for producing
high levels of ozone air pollution in the Dallas-Fort Worth area
on Saturday. You can help prevent ozone pollution by sharing a
ride, walking, riding a bicycle, taking your lunch to work,
avoiding drive-through lanes, conserving energy, and keeping your
vehicle properly tuned.

For more information on ozone:

Ozone: The Facts (www.tceq.texas.gov/goto/ozonefacts)

Air North Texas: (www.airnorthtexas.org)

EPA Air Now
(www.airnow.gov/index.cfm?action.local_state&STATEID=45&TAB=0)

Take care of Texas (www.takecareoftexas.org)

North Central Texas Council of Governments Air Quality
(www.nctcog.org/trans/air/index.asp)
Updated: Sep 20, 5:17 AM Source: NWS Alert