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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today › Tuesday, March 17, 2026
Active Weather Warnings
Killeen, Texas
5 AM
Night
34°
Feels Like 30°
0
Humidity: 48%
UV Index: 0
Wind: 6 mph
6 AM
Cloudy Night
36°
Feels Like 30°
0
Humidity: 47%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Night
36°
Feels Like 32°
0
Humidity: 45%
UV Index: 0
Wind: 7 mph
8 AM
Cloudy Weather
36°
Feels Like 32°
0
Humidity: 45%
UV Index: 1
Wind: 7 mph
9 AM
Cloudy Weather
39°
Feels Like 37°
0
Humidity: 38%
UV Index: 2
Wind: 8 mph
10 AM
Cloudy Weather
46°
Feels Like 45°
0
Humidity: 30%
UV Index: 3
Wind: 10 mph
11 AM
Cloudy Weather
52°
Feels Like 52°
0
Humidity: 23%
UV Index: 5
Wind: 12 mph
12 PM
Cloudy Weather
55°
Feels Like 57°
0
Humidity: 19%
UV Index: 6
Wind: 13 mph
1 PM
Cloudy Weather
61°
Feels Like 63°
0
Humidity: 16%
UV Index: 7
Wind: 13 mph
2 PM
Cloudy Weather
63°
Feels Like 63°
0
Humidity: 15%
UV Index: 6
Wind: 18 mph
3 PM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 14%
UV Index: 5
Wind: 20 mph
4 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 14%
UV Index: 3
Wind: 20 mph
5 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 15%
UV Index: 2
Wind: 20 mph
6 PM
Cloudy Weather
64°
Feels Like 63°
0
Humidity: 15%
UV Index: 1
Wind: 18 mph
7 PM
Cloudy Weather
63°
Feels Like 57°
0
Humidity: 16%
UV Index: 0
Wind: 18 mph
8 PM
Cloudy Night
61°
Feels Like 54°
0
Humidity: 19%
UV Index: 0
Wind: 18 mph
9 PM
Cloudy Night
57°
Feels Like 50°
0
Humidity: 22%
UV Index: 0
Wind: 17 mph
10 PM
Cloudy Night
54°
Feels Like 46°
0
Humidity: 25%
UV Index: 0
Wind: 17 mph
11 PM
Cloudy Night
52°
Feels Like 45°
0
Humidity: 28%
UV Index: 0
Wind: 17 mph

Hourly Air Quality Forecast - AQI (US EPA)

5 AM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.33 µg/m³
  • PM10: 2.58 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 AM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.5 µg/m³
  • PM10: 2.82 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.65 µg/m³
  • PM10: 3.08 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.79 µg/m³
  • PM10: 3.39 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.84 µg/m³
  • PM10: 3.61 µg/m³
  • O3: 0.037 ppm
  • NO2: 3.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.93 µg/m³
  • PM10: 3.74 µg/m³
  • O3: 0.040 ppm
  • NO2: 3.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.34 µg/m³
  • PM10: 3.78 µg/m³
  • O3: 0.050 ppm
  • NO2: 2.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

12 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.05 µg/m³
  • PM10: 4.41 µg/m³
  • O3: 0.053 ppm
  • NO2: 2.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM
50 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.84 µg/m³
  • PM10: 5.29 µg/m³
  • O3: 0.054 ppm
  • NO2: 2.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM
75 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.37 µg/m³
  • PM10: 5.54 µg/m³
  • O3: 0.062 ppm
  • NO2: 1.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

3 PM
89 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.43 µg/m³
  • PM10: 5.48 µg/m³
  • O3: 0.066 ppm
  • NO2: 0.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
91 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.21 µg/m³
  • PM10: 5.28 µg/m³
  • O3: 0.067 ppm
  • NO2: 0.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
94 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.86 µg/m³
  • PM10: 4.93 µg/m³
  • O3: 0.068 ppm
  • NO2: 0.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
90 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.46 µg/m³
  • PM10: 4.54 µg/m³
  • O3: 0.067 ppm
  • NO2: 0.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
85 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.06 µg/m³
  • PM10: 4.15 µg/m³
  • O3: 0.065 ppm
  • NO2: 1.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 PM
78 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.76 µg/m³
  • PM10: 3.91 µg/m³
  • O3: 0.063 ppm
  • NO2: 1.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 PM
71 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.62 µg/m³
  • PM10: 3.84 µg/m³
  • O3: 0.061 ppm
  • NO2: 1.8 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 PM
66 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.53 µg/m³
  • PM10: 3.81 µg/m³
  • O3: 0.059 ppm
  • NO2: 1.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 PM
61 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.4 µg/m³
  • PM10: 3.65 µg/m³
  • O3: 0.058 ppm
  • NO2: 1.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Killeen

Moderate Expected Likely

Freeze Warning

Freeze Warning issued March 17 at 2:03AM CDT until March 17 at 9:00AM CDT by NWS Fort Worth TX
Mar 17, 3:00 AM → Mar 17, 9:00 AM
WHAT: Sub-freezing temperatures as low as 24 expected.

WHERE: North and Central Texas

WHEN: Until 9 AM CDT this morning.

IMPACTS: Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.

ADDITIONAL DETAILS: Highly urban areas like DFW may hover just
above freezing overnight in some areas.
+ Read More
Take steps now to protect tender plants from the cold. Freeze Warnings are issued in the spring when a late-season freeze is expected after the growing season has begun. Frost and freeze conditions will damage unprotected vegetation that is sensitive to freezing temperatures.
Updated: Mar 17, 3:09 AM Source: NWS Alert

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