Hourly Weather | Today Tuesday, July 21, 2026
Active Weather Warnings
Conroe, Texas
4 AM
Cloudy Night
75°
Feels Like 81°
0
Humidity: 89%
UV Index: 0
Wind: 5 mph
5 AM
Cloudy Night
73°
Feels Like 79°
0
Humidity: 90%
UV Index: 0
Wind: 5 mph
6 AM
Cloudy Night
73°
Feels Like 79°
0
Humidity: 92%
UV Index: 0
Wind: 4 mph
7 AM
Cloudy Weather
73°
Feels Like 79°
0
Humidity: 94%
UV Index: 1
Wind: 5 mph
8 AM
Cloudy Weather
79°
Feels Like 88°
0
Humidity: 83%
UV Index: 2
Wind: 5 mph
9 AM
Cloudy Weather
81°
Feels Like 91°
0
Humidity: 78%
UV Index: 3
Wind: 5 mph
10 AM
Cloudy Weather
84°
Feels Like 99°
0
Humidity: 69%
UV Index: 5
Wind: 5 mph
11 AM
Cloudy Weather
88°
Feels Like 102°
0
Humidity: 61%
UV Index: 8
Wind: 6 mph
12 PM
Cloudy Weather
91°
Feels Like 108°
0
Humidity: 53%
UV Index: 11
Wind: 6 mph
1 PM
Cloudy Weather
95°
Feels Like 109°
0
Humidity: 47%
UV Index: 11
Wind: 6 mph
2 PM
Cloudy Weather
97°
Feels Like 111°
0
Humidity: 42%
UV Index: 11
Wind: 6 mph
3 PM
Cloudy Weather
99°
Feels Like 109°
0
Humidity: 38%
UV Index: 8
Wind: 5 mph
4 PM
Cloudy Weather
99°
Feels Like 108°
0
Humidity: 36%
UV Index: 5
Wind: 5 mph
5 PM
Cloudy Weather
100°
Feels Like 106°
0
Humidity: 35%
UV Index: 3
Wind: 5 mph
6 PM
Cloudy Weather
99°
Feels Like 102°
0
Humidity: 38%
UV Index: 2
Wind: 5 mph
7 PM
Cloudy Weather
97°
Feels Like 100°
0
Humidity: 42%
UV Index: 1
Wind: 5 mph
8 PM
Cloudy Weather
93°
Feels Like 97°
0
Humidity: 47%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
91°
Feels Like 95°
0
Humidity: 53%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
88°
Feels Like 91°
0
Humidity: 60%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
84°
Feels Like 90°
0
Humidity: 66%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

4 AM
12 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.52 µg/m³
  • PM10: 6.52 µg/m³
  • O3: 0.012 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

5 AM
11 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.55 µg/m³
  • PM10: 6.34 µg/m³
  • O3: 0.011 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

6 AM
11 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.59 µg/m³
  • PM10: 6.13 µg/m³
  • O3: 0.010 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

7 AM
11 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.63 µg/m³
  • PM10: 5.93 µg/m³
  • O3: 0.009 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

8 AM
11 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.66 µg/m³
  • PM10: 5.97 µg/m³
  • O3: 0.008 ppm
  • NO2: 1.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

9 AM
11 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.67 µg/m³
  • PM10: 6.3 µg/m³
  • O3: 0.009 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

10 AM
11 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.65 µg/m³
  • PM10: 6.7 µg/m³
  • O3: 0.012 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.53 µg/m³
  • PM10: 6.67 µg/m³
  • O3: 0.021 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.66 µg/m³
  • PM10: 6.5 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.92 µg/m³
  • PM10: 6.54 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

2 PM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.62 µg/m³
  • PM10: 5.4 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

3 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.33 µg/m³
  • PM10: 4.49 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

4 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.32 µg/m³
  • PM10: 4.33 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

5 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.41 µg/m³
  • PM10: 4.48 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

6 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.56 µg/m³
  • PM10: 4.85 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

7 PM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.68 µg/m³
  • PM10: 5.26 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

8 PM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.77 µg/m³
  • PM10: 5.67 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

9 PM
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.89 µg/m³
  • PM10: 6.16 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

10 PM
22 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.01 µg/m³
  • PM10: 6.72 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

11 PM
19 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.04 µg/m³
  • PM10: 7.07 µg/m³
  • O3: 0.020 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Conroe

Moderate Expected Likely

Heat Advisory

Heat Advisory issued July 21 at 1:01AM CDT until July 21 at 8:00PM CDT by NWS Houston/Galveston TX
Jul 21, 11:00 AM Jul 21, 8:00 PM
WHAT: Heat index values up to 108 expected.

WHERE: Portions of south central and southeast Texas.

WHEN: From 11 AM this morning to 8 PM CDT this evening.

IMPACTS: Hot temperatures and high humidity will increase the
risk for heat-related illnesses to occur, particularly for those
working or participating in outdoor activities.
+ Read More
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Updated: Jul 21, 2:57 AM Source: NWS Alert