Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 04-Aug-2026 6:30am - next update at 6:35am  
Summary / Temperature Wind Precipitation Outlook


Dawn, Dry, Clear
Dawn, Dry, Clear

77.7°F Colder 0.5°F than last hour.
Comfortable
Currently 77.7, Max: 85.7, Min: 77.3 Feels like:
80°F

24-hr
difference
5.1°FWarmer 5.1°F than yesterday at this time.
TEMP HIGH LOW
Today 85.7°F
12:25am
77.3°F
5:53am
Yesterday 100.0°F
3:58pm
72.2°F
6:43am
Record 108°F
2011
63°F
1915
Normal 97°F
77°F
 Calm S
0.0
Gust:
0.0
Calm

60-Min Avg: Calm
120-Min Avg: 2.3 mph
Max Gust: 9.2 mph 2:38am
Month: 22.0 mph Aug 1
Today: 0.00 in
Yesterday: 0.00 in
Last
Rain:
7/19/2026
7:45 PM
August: 0.00 in
Last 7 Days: 0.00 in
Rain Season:1 22.53 in
Rain Days: 57 in 2026
16 days since last rain
Tonight

Tonight: Mostly Clear
Mostly Clear

Barometer Humidity/Dew Point Moon
Current: 29.863 inHg Rising 0.01 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Rising slowly
High: 29.865  |  Low: 29.826
Humidity: 70 % Increased 4% since last hour.
Humidex: 90.6°F
Dewpoint: 67.1°F Increased 1.1°F since last hour.
Wetbulb: 70.8°F
Waning Gibbous
Waning Gibbous, Moon at 20 days in cycle
68%
Illuminated
UV Forecast Current Solar Energy
04-Aug-2026   Very High   10.6   
05-Aug-2026   Very High   9.8   
06-Aug-2026   Very High   10.9   
Energy: 0 W/m2 (0%)
High: 0 at  12:00am
Apparent Temp: 82.8°F
Heat Index Cooling Degree Days Sun
Current: 79.7°F
Today: 86.4°F  12:25am
Yesterday: 103.5°F
Last Week: 114.4°F
Record: 127.2°F   26-Aug-2023
Today: 4.7
August: 70.4
2026 to Date: 1963.0
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
13:42 hrs:min
-00:01:34 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:42am
Sunset: 8:24pm
Moonrise: 11:10pm
Moonset: 12:32pm
Full Moon: July 29 2026
New Moon: 17:37 UTC August 12 2026
Updated at Midnight
Current: 0.08 in   
7-Days Rain: 0.00 in   
7-Days ET: 1.74 in   
7-Day: -1.74 in 1.74 in water in deficit of what evaporated in last 7 days.
August: -0.86 in 0.86 in water in deficit of what evaporated this month.
Irrigation System: Ready
Other Conditions
Air Density: 1.17 kg/m3
Cloud Height: 3174 ft
HIGHS: LOWS:
111.0°F
Aug 18 2023
-2.0°F
Feb 16 2021
Daytime Records
108.1°F
Aug 19 2024
3.6°F
Feb 15 2021
Nitetime Records
95.2°F
Aug 11 2023
2.1°F
Feb 16 2021
ICN:1 ISS:Ok CON:4.6 RCP:99%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
4.6 at 06:30 AM
1 Rain season: Jan 1st to Dec 31st.    5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present.)
 NWS Weather Forecast  -   Today's and Tonight's Outlook
Today

Today: Sunny
Sunny

Hi 100 °F
NWS forecast: Sunny, with a high near 100. Heat index values as high as 101. South wind 5 to 10 mph.
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 81 °F
NWS forecast: Mostly clear, with a low around 81. Heat index values as high as 99. South southeast wind 5 to 10 mph.
 NWS NWS Short Term Weather Forecast
Tonight

Tonight: Mostly Clear
Mostly Clear
Wednesday

Wednesday: Sunny
Sunny
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday

Thursday: Sunny
Sunny
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Friday

Friday: Sunny
Sunny
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday

Saturday: Sunny
Sunny
Lo 81 °F Hi 101 °F Lo 80 °F Hi 100 °F Lo 80 °F Hi 97 °F Lo 79 °F Hi 98 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.