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Today | Weather | Sunday, December 14, 2025
Active Weather Warnings

Weather in McAllen, Texas

07:15 AM
Now
Foggy Weather
73° F
Feels Like 75°
Precipitation 38 %
Wind 5 mph
Humidity 89 %
Today
Partly Sunny with Showers
Day 73°
Night 50°
Precipitation 57 %
Wind 14 mph
UV Index (0 - 11+) 2

McAllen Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 14, 2024)
Stormy Weather

Day

81°

Night

70°

Wind

8 mph

Precipitation

40 %

Air Quality in McAllen

NOW
25 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 5.93 µg/m³
PM10 7.95 µg/m³
O3 0.013 ppm
NO2 0.6 ppb
SO2 0 ppb
CO 0.11 ppm
NH3 2.02 µg/m³
NO 0 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)
PM2.5 – 5.93 µg/m³
PM10 – 7.95 µg/m³
O3 – 26.4 µg/m³
NO2 – 1.05 µg/m³
SO2 – 0.04 µg/m³
CO – 129.88 µg/m³
NH3 – 2.02 µg/m³
NO – 0 µg/m³
View Hourly Air Quality Forecast

Weather Alerts and Warnings for McAllen

Moderate Expected Likely

Dense Fog Advisory

Dense Fog Advisory issued December 14 at 5:46AM CST until December 14 at 8:00AM CST by NWS Brownsville TX
Dec 14, 5:46 AM → Dec 14, 8:00 AM
WHAT: Visibility one quarter mile or less in dense fog.

WHERE: A portion of Deep South Texas.

WHEN: Until 8 AM CST this morning.

IMPACTS: Low visibility could make driving conditions hazardous.
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If driving, slow down, use low beam headlights or fog lamps, and leave plenty of distance ahead of you and between vehicles.
Updated: Dec 14, 5:54 AM Source: NWS Alert