Today | Weather | Saturday, April 4, 2026

Weather in McAllen, Texas

03:34 PM
Now
Cloudy Weather
93° F
Feels Like 93°
Precipitation 6 %
Wind 13 mph
UV Index (0 - 11+) 4
Humidity 40 %
Today
Cloudy Weather
Day 93°
Night 64°
Precipitation 25 %
Wind 14 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

McAllen Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 4, 2025)
Cloudy Weather

Day

93°

Night

77°

Wind

20 mph

UV Index

10

Precipitation

1 %

Air Quality in McAllen

NOW
26 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.02 µg/m³
PM10 3.44 µg/m³
O3 0.028 ppm
NO2 0.3 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 1.42 µg/m³
NO 0.03 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)
PM2.52.02 µg/m³
PM103.44 µg/m³
O355.16 µg/m³
NO20.49 µg/m³
SO20.2 µg/m³
CO121.56 µg/m³
NH31.42 µg/m³
NO0.03 µg/m³