Today | Weather | Thursday, May 21, 2026

Weather in Killeen, Texas

10:20 AM
Now
Cloudy Weather
72° F
Feels Like 75°
Precipitation 40 %
Wind 8 mph
UV Index (0 - 11+) 1
Humidity 88 %
Today
Stormy Weather
Day 79°
Night 66°
Precipitation 96 %
Wind 7 mph
UV Index (0 - 11+) 3

Killeen Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (May 21, 2025)
Cloudy Weather

Day

91°

Night

70°

Wind

8 mph

UV Index

12

Precipitation

1 %

Air Quality in Killeen

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

Pollutant Concentrations:

PM2.5 5.61 µg/m³
PM10 6.4 µg/m³
O3 0.008 ppm
NO2 3.6 ppb
SO2 0.2 ppb
CO 0.13 ppm
NH3 0.45 µg/m³
NO 1.33 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)
PM2.55.61 µg/m³
PM106.4 µg/m³
O315.77 µg/m³
NO26.76 µg/m³
SO20.61 µg/m³
CO144.07 µg/m³
NH30.45 µg/m³
NO1.33 µg/m³