Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 01-Sep-2026 1:50pm - next update at 1:55pm  
Summary / Temperature Wind Precipitation Outlook


Sunny, Dry
Sunny, Dry

98.2°F Warmer 5.1°F than last hour.
Dangerously Hot
Currently 98.2, Max: 98.7, Min: 78.5 Feels like:
107°F

24-hr
difference
-1.9°FColder 1.9°F than yesterday at this time.
TEMP HIGH LOW
Today 98.7°F
1:47pm
78.5°F
7:17am
Yesterday 101.6°F
1:58pm
81.2°F
6:44am
Record 109°F
2000
59°F
1915
Normal 93°F
73°F
 Wind from SE SE
7.3
Gust:
4.4
Gentle Breeze

60-Min Avg: 1.2 mph
120-Min Avg: 3.5 mph
Max Gust: 13.2 mph 1:22pm
Month: 13.2 mph Sep 1
Today: 0.00 in
Yesterday: 0.00 in
Last
Rain:
8/4/2026
6:09 PM
September: 0.00 in
Last 7 Days: 0.00 in
Rain Season:1 22.54 in
Rain Days: 58 in 2026
28 days since last rain
Tonight

Tonight: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms

Barometer Humidity/Dew Point Moon
Current: 29.947 inHg Falling 0.03 °F/hr
1-Hr Trend: Falling
3-Hr Trend: Falling
High: 30.010  |  Low: 29.929
Humidity: 40 % Decreased 9% since last hour.
Humidex: 113.3°F
Dewpoint: 69.7°F Decreased 1.6°F since last hour.
Wetbulb: 78.7°F
Waning Gibbous
Waning Gibbous, Moon at 19 days in cycle
77%
Illuminated
Current UV Index Current Solar Energy
   5.0    Medium 
High: 5.2 @ 1:36pm
Time to Burn: 22 Mins
Energy: 0 W/m2 (94%)
High: 858 at  1:06pm
Apparent Temp: 116.7°F
Heat Index Cooling Degree Days Sun
Current: 107.1°F
Today: 108.7°F  1:47pm
Yesterday: 106.7°F
Last Week: 110.2°F
Record: 127.2°F   26-Aug-2023
Today: 11.3
September: 11.3
2026 to Date: 2702.3
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: 0.20 in   
7-Days Rain: 0.00 in   
7-Days ET: 1.50 in   
7-Day: -1.5 in 1.5 in water in deficit of what evaporated in last 7 days.
September: 0 in 
Irrigation System: Ready
Other Conditions
Air Density: 1.13 kg/m3
Cloud Height: 7269 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:3 ISS:Ok CON:4.6 RCP:98%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
38.8 at 1:50 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  -   Today's and Tonight's Outlook
Today

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

Hi 99 °F
NWS forecast: A slight chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms. Sunny, with a high near 99. Heat index values as high as 102. South southeast wind 5 to 10 mph.
Tonight

Tonight: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms

Lo 78 °F
NWS forecast: A slight chance of showers and thunderstorms. Mostly clear. Low around 78, with temperatures rising to around 80 overnight. Heat index values as high as 100. Southeast wind 5 to 10 mph.
 NWS NWS Short Term Weather Forecast
Tonight

Tonight: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Wednesday

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

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

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

Saturday: Sunny
Sunny
Lo 78 °F Hi 98 °F Lo 77 °F Hi 93 °F Lo 77 °F Hi 97 °F Lo 77 °F Hi 97 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.