Today | Weather | Monday, March 23, 2026

Weather in McAllen, Texas

07:30 PM
Now
Cloudy Weather
86° F
Feels Like 82°
Precipitation 0 %
Wind 15 mph
UV Index (0 - 11+) 0
Humidity 39 %
Today
Cloudy Night
Day 91°
Night 66°
Precipitation 2 %
Wind 9 mph

McAllen Weather Forecast Updated

14 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 23, 2025)
Cloudy Weather

Day

88°

Night

73°

Wind

15 mph

UV Index

3

Precipitation

1 %

Air Quality in McAllen

NOW
34 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3 µg/m³
PM10 7.86 µg/m³
O3 0.036 ppm
NO2 0.1 ppb
SO2 0.1 ppb
CO 0.09 ppm
NH3 0.53 µg/m³
NO 0.02 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 µg/m³
PM107.86 µg/m³
O371.33 µg/m³
NO20.25 µg/m³
SO20.21 µg/m³
CO106.85 µg/m³
NH30.53 µg/m³
NO0.02 µg/m³