Hourly Weather | Today Thursday, September 10, 2026
Active Weather Warnings
McAllen, Texas
8 AM
Cloudy Weather
81°
Feels Like 91°
6
Humidity: 83%
UV Index: 1
Wind: 7 mph
9 AM
Cloudy Weather
84°
Feels Like 95°
6
Humidity: 78%
UV Index: 2
Wind: 9 mph
10 AM
Cloudy Weather
88°
Feels Like 99°
6
Humidity: 67%
UV Index: 3
Wind: 12 mph
11 AM
Cloudy Weather
91°
Feels Like 100°
5
Humidity: 57%
UV Index: 5
Wind: 12 mph
12 PM
Cloudy Weather
95°
Feels Like 104°
5
Humidity: 47%
UV Index: 7
Wind: 12 mph
1 PM
Cloudy Weather
99°
Feels Like 106°
8
Humidity: 41%
UV Index: 7
Wind: 10 mph
2 PM
Cloudy Weather
100°
Feels Like 106°
43
Humidity: 37%
UV Index: 7
Wind: 10 mph
3 PM
Cloudy Weather
102°
Feels Like 108°
47
Humidity: 33%
UV Index: 5
Wind: 10 mph
4 PM
Stormy Weather
100°
Feels Like 100°
51
Humidity: 36%
UV Index: 2
Wind: 12 mph
5 PM
Cloudy Weather
100°
Feels Like 102°
24
Humidity: 36%
UV Index: 2
Wind: 14 mph
6 PM
Cloudy Weather
99°
Feels Like 100°
19
Humidity: 38%
UV Index: 1
Wind: 16 mph
7 PM
Cloudy Weather
97°
Feels Like 95°
13
Humidity: 43%
UV Index: 0
Wind: 17 mph
8 PM
Cloudy Night
93°
Feels Like 93°
1
Humidity: 50%
UV Index: 0
Wind: 16 mph
9 PM
Cloudy Night
90°
Feels Like 93°
1
Humidity: 58%
UV Index: 0
Wind: 16 mph
10 PM
Cloudy Night
88°
Feels Like 91°
1
Humidity: 67%
UV Index: 0
Wind: 15 mph
11 PM
Cloudy Night
86°
Feels Like 91°
1
Humidity: 72%
UV Index: 0
Wind: 14 mph

Hourly Air Quality Forecast - AQI (US EPA)

8 AM
15 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.06 µg/m³
  • PM10: 2.65 µg/m³
  • O3: 0.016 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

9 AM
15 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.35 µg/m³
  • PM10: 2.99 µg/m³
  • O3: 0.016 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

10 AM
16 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.68 µg/m³
  • PM10: 3.38 µg/m³
  • O3: 0.017 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

11 AM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.81 µg/m³
  • PM10: 3.49 µg/m³
  • O3: 0.022 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.67 µg/m³
  • PM10: 3.28 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.75 µg/m³
  • PM10: 3.34 µg/m³
  • O3: 0.025 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2 µg/m³
  • PM10: 2.39 µg/m³
  • O3: 0.025 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.55 µg/m³
  • PM10: 1.82 µg/m³
  • O3: 0.025 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.52 µg/m³
  • PM10: 1.76 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.56 µg/m³
  • PM10: 1.8 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.63 µg/m³
  • PM10: 1.93 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.65 µg/m³
  • PM10: 2.06 µg/m³
  • O3: 0.025 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.78 µg/m³
  • PM10: 2.4 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.21 µg/m³
  • PM10: 2.89 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.98 µg/m³
  • PM10: 3.65 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.97 µg/m³
  • PM10: 4.65 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 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 McAllen

Moderate Expected Observed

Special Weather Statement

Special Weather Statement issued September 10 at 5:23AM CDT by NWS Brownsville TX
Sep 10, 5:23 AM Sep 10, 7:00 PM
The combination of hot temperatures and elevated humidity levels
will produce heat index values between 108 and 111 degrees for
several hours this afternoon into this evening. A few locations
may briefly experience heat index values above 111 degrees.

If you plan to spend time outside, drink plenty of water, wear
light weight and light colored clothing and take frequent breaks
from the heat. Young children and pets should never be left
unattended in vehicles.
Updated: Sep 10, 6:31 AM Source: NWS Alert