Today | Weather | Saturday, January 3, 2026

Weather in McKinney, Texas

03:13 PM
Now
Sunny Weather
63° F
Feels Like 63°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 2
Humidity 42 %
Today
Sunny Weather
Day 63°
Night 36°
Precipitation 2 %
Wind 12 mph
UV Index (0 - 11+) 3

McKinney Weather Forecast Updated

31 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (January 3, 2025)
Cloudy Weather

Day

61°

Night

48°

Wind

6 mph

UV Index

3

Precipitation

0 %

Air Quality in McKinney

NOW
53 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 13.21 µg/m³
PM10 14.9 µg/m³
O3 0.045 ppm
NO2 1.4 ppb
SO2 0.7 ppb
CO 0.17 ppm
NH3 0.42 µg/m³
NO 0.51 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.513.21 µg/m³
PM1014.9 µg/m³
O388.73 µg/m³
NO22.61 µg/m³
SO21.8 µg/m³
CO199.73 µg/m³
NH30.42 µg/m³
NO0.51 µg/m³