Today | Weather | Tuesday, November 18, 2025

Weather in McAllen, Texas

12:40 PM
Now
Cloudy Weather
90° F
Feels Like 91°
Precipitation 0 %
Wind 16 mph
UV Index (0 - 11+) 3
Humidity 53 %
Today
Cloudy Weather
Day 91°
Night 73°
Precipitation 2 %
Wind 13 mph
UV Index (0 - 11+) 3

McAllen Weather Forecast Updated

50 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 18, 2024)
Cloudy Night

Day

97°

Night

63°

Wind

6 mph

Precipitation

5 %

Air Quality in McAllen

NOW
30 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.33 µg/m³
PM10 4.93 µg/m³
O3 0.033 ppm
NO2 0.2 ppb
SO2 0.3 ppb
CO 0.10 ppm
NH3 0 µg/m³
NO 0.06 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

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

Show raw pollutant concentrations (µg/m³)
PM2.53.33 µg/m³
PM104.93 µg/m³
O364.53 µg/m³
NO20.32 µg/m³
SO20.66 µg/m³
CO113.57 µg/m³
NH30 µg/m³
NO0.06 µg/m³