Hourly Weather | Today Thursday, August 27, 2026
Active Weather Warnings
Plano, Texas
8 PM
Cloudy Night
91°
Feels Like 91°
0
Humidity: 45%
UV Index: 0
Wind: 9 mph
9 PM
Cloudy Night
90°
Feels Like 91°
0
Humidity: 51%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
88°
Feels Like 91°
0
Humidity: 56%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
86°
Feels Like 90°
0
Humidity: 60%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 14.15 µg/m³
  • PM10: 14.67 µg/m³
  • O3: 0.066 ppm
  • NO2: 1.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 13.77 µg/m³
  • PM10: 14.28 µg/m³
  • O3: 0.063 ppm
  • NO2: 1.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 13.53 µg/m³
  • PM10: 14.05 µg/m³
  • O3: 0.061 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 13.36 µg/m³
  • PM10: 13.88 µg/m³
  • O3: 0.056 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Plano

Moderate Expected Likely

Heat Advisory

Heat Advisory issued August 26 at 11:20AM CDT until August 27 at 8:00PM CDT by NWS Fort Worth TX
Aug 26, 11:20 AM Aug 27, 8:00 PM
WHAT: Heat index values of 105 to 108 expected.

WHERE: Portions of north and central Texas.

WHEN: Until 8 PM CDT Thursday.

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.
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Take extra precautions when outside by staying hydrated, wearing lightweight and loose fitting clothing, and limiting strenuous activities to the early morning or evening. Check up on relatives and neighbors. Never leave young children or pets in an enclosed vehicle, even for a short time, as temperatures can quickly rise to life-threatening levels. Know the signs and symptoms of heat exhaustion and heat stroke. To reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat stroke.
Updated: Aug 26, 6:57 PM Source: NWS Alert