Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 31-Aug-2026 8:35pm - next update at 8:40pm  
Summary / Temperature Wind Precipitation Outlook


Night time, Dry, A few clouds
Night time, Dry, A few clouds

93.7°F Colder 2.2°F than last hour.
Hot
Currently 93.7, Max: 101.6, Min: 81.2 Feels like:
95°F

24-hr
difference
0.5°FWarmer 0.5°F than yesterday at this time.
TEMP HIGH LOW
Today 101.6°F
1:58pm
81.2°F
6:44am
Yesterday 102.0°F
4:33pm
78.8°F
6:06am
Record 108°F
2000
55°F
1915
Normal 93°F
73°F
 Wind from SE SE
3.2
Gust:
2.2
Light Breeze

60-Min Avg: 3.5 mph
120-Min Avg: 3.5 mph
Max Gust: 18.7 mph 1:07pm
Month: 30.8 mph Aug 9
Today: 0.00 in
Yesterday: 0.00 in
Last
Rain:
8/4/2026
6:09 PM
August: 0.01 in
Last 7 Days: 0.00 in
Rain Season:1 22.54 in
Rain Days: 58 in 2026
27 days since last rain
Tuesday

Tuesday: Sunny then Slight Chance Showers And Thunderstorms
Sunny then Slight Chance Showers And T-Storms

Barometer Humidity/Dew Point Moon
Current: 29.896 inHg Rising 0.01 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Steady
High: 30.013  |  Low: 29.882
Humidity: 37 % Increased 3% since last hour.
Humidex: 103.9°F
Dewpoint: 63.5°F Increased 0.5°F since last hour.
Wetbulb: 74.1°F
Waning Gibbous
Waning Gibbous, Moon at 18 days in cycle
84%
Illuminated
UV Forecast Current Solar Energy
31-Aug-2026   Very High   9.7   
01-Sep-2026   Very High   9.0   
02-Sep-2026   Very High   9.2   
Energy: 0 W/m2 (0%)
High: 908 at  1:57pm
Apparent Temp: 96.9°F
Heat Index Cooling Degree Days Sun
Current: 95.4°F
Today: 106.7°F  12:41pm
Yesterday: 107.7°F
Last Week: 110.2°F
Record: 127.2°F   26-Aug-2023
Today: 19.2
August: 789.9
2026 to Date: 2684.2
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
12:52 hrs:min
-00:01:57 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 7:01am
Sunset: 7:53pm
Moonrise: 9:45pm
Moonset: 11:32am
Full Moon: August 28 2026
New Moon: 03:28 UTC September 11 2026
Updated at Midnight
Current: 0.27 in   
7-Days Rain: 0.00 in   
7-Days ET: 1.87 in   
7-Day: -1.87 in 1.87 in water in deficit of what evaporated in last 7 days.
August: -8.83 in 8.83 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.14 kg/m3
Cloud Height: 7668 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:98%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
44.5 at 8:35 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  -   Tonight's and Tuesday's Outlook
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 80 °F
NWS forecast: Mostly clear. Low around 80, with temperatures rising to around 82 overnight. Heat index values as high as 101. South southeast wind 5 to 10 mph.
Tuesday

Tuesday: Sunny then Slight Chance Showers And Thunderstorms
Sunny then Slight Chance Showers And T-Storms

Hi 98 °F
NWS forecast: A slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 98. Heat index values as high as 103. South southeast wind 5 to 10 mph.
 NWS NWS Short Term Weather Forecast
Tuesday

Tuesday: Sunny then Slight Chance Showers And Thunderstorms
Sunny then Slight Chance Showers And T-Storms
Tuesday
Night
Tuesday Night: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear
Wednesday

Wednesday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Thursday

Thursday: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Friday

Friday: Sunny
Sunny
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Hi 98 °F Lo 78 °F Hi 97 °F Lo 78 °F Hi 97 °F Lo 79 °F Hi 98 °F Lo 79 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.