Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 03-Aug-2026 5:45pm - next update at 5:50pm  
Summary / Temperature Wind Precipitation Outlook


Mostly cloudy, Dry
Mostly cloudy, Dry

97.4°F Colder 0.8°F than last hour.
Dangerously Hot
Currently 97.4, Max: 100.0, Min: 72.2 Feels like:
99°F

24-hr
difference
3.9°FWarmer 3.9°F than yesterday at this time.
TEMP HIGH LOW
Today 100.0°F
3:58pm
72.2°F
6:43am
Yesterday 96.1°F
4:25pm
72.6°F
7:07am
Record 109°F
2011
64°F
1973
Normal 97°F
77°F
 Wind from ESE ESE
5.8
Gust:
2.2
Light Breeze

60-Min Avg: 3.5 mph
120-Min Avg: 3.5 mph
Max Gust: 18.7 mph 4:37pm
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
15 days since last rain
Tonight

Tonight: Clear
Clear

Barometer Humidity/Dew Point Moon
Current: 29.794 inHg Falling 0.01 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Falling
High: 29.908  |  Low: 29.794
Humidity: 33 %  
Humidex: 107.5°F
Dewpoint: 63.5°F Decreased 0.7°F since last hour.
Wetbulb: 75.2°F
Waning Gibbous
Waning Gibbous, Moon at 19 days in cycle
73%
Illuminated
Current UV Index Current Solar Energy
   0.7    Low 
High: 5.5 @ 1:13pm
Time to Burn: 160 Mins
Energy: 0 W/m2 (30%)
High: 835 at  1:25pm
Apparent Temp: 105.6°F
Heat Index Cooling Degree Days Sun
Current: 99.5°F
Today: 103.5°F  3:47pm
Yesterday: 98.3°F
Last Week: 114.4°F
Record: 127.2°F   26-Aug-2023
Today: 10.1
August: 53.9
2026 to Date: 1946.5
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
13:44 hrs:min
-00:01:31 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:41am
Sunset: 8:25pm
Moonrise: 10:42pm
Moonset: 11:30am
Full Moon: July 29 2026
New Moon: 17:37 UTC August 12 2026
Updated at Midnight
Current: 0.33 in   
7-Days Rain: 0.00 in   
7-Days ET: 1.79 in   
7-Day: -1.8 in 1.8 in water in deficit of what evaporated in last 7 days.
August: -0.58 in 0.58 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.13 kg/m3
Cloud Height: 8520 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:0 ISS:Ok CON:4.6 RCP:100%
Chandler Burning Index
Chandler Burning Index: MODERATE
Currently:
55.4 at 5:45 PM
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  -   This Afternoon's and Tonight's Outlook
This
Afternoon
This Afternoon: Sunny
Sunny

Hi 99 °F
NWS forecast: Sunny, with a high near 99. Heat index values as high as 99. East southeast wind around 5 mph.
Tonight

Tonight: Clear
Clear

Lo 77 °F
NWS forecast: Clear. Low around 77, with temperatures rising to around 79 overnight. Heat index values as high as 97. Southeast wind 5 to 10 mph.
 NWS NWS Short Term Weather Forecast
Tonight

Tonight: Clear
Clear
Tuesday

Tuesday: Sunny
Sunny
Tuesday
Night
Tuesday Night: 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 then Slight Chance Showers And Thunderstorms
Sunny then Slight Chance Showers And T-Storms
Lo 77 °F Hi 100 °F Lo 80 °F Hi 101 °F Lo 80 °F Hi 100 °F Lo 79 °F Hi 97 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.