Heat Advisory HEAT ADVISORY - Plano, Collin County, Texas
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Updated: @ 07-Sep-2026 10:45am - next update at 10:50am  
Summary / Temperature Wind Precipitation Outlook


Sunny, Dry
Sunny, Dry

92.4°F Warmer 2.7°F than last hour.
Hot
Currently 92.4, Max: 92.6, Min: 78.9 Feels like:
102°F

24-hr
difference
0.8°FWarmer 0.8°F than yesterday at this time.
TEMP HIGH LOW
Today 92.6°F
10:35am
78.9°F
6:30am
Yesterday 99.8°F
3:47pm
77.1°F
6:55am
Record 107°F
2023
56°F
1918
Normal 91°F
71°F
 Calm S
0.0
Gust:
0.0
Calm

60-Min Avg: 4.6 mph
120-Min Avg: Calm
Max Gust: 9.2 mph 9:17am
Month: 23.1 mph Sep 3
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
34 days since last rain
Tonight

Tonight: Clear
Clear

Barometer Humidity/Dew Point Moon
Current: 29.947 inHg Rising 0.01 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Rising
High: 29.947  |  Low: 29.860
Humidity: 56 % Decreased 6% since last hour.
Humidex: 111.9°F
Dewpoint: 74.4°F Decreased 0.6°F since last hour.
Wetbulb: 79.8°F
Waning Crescent
Waning Crescent, Moon at 25 days in cycle
15%
Illuminated
Current UV Index Current Solar Energy
   2.5    Low 
High: 2.5 @ 10:44am
Time to Burn: 45 Mins
Energy: 0 W/m2 (96%)
High: 549 at  10:44am
Apparent Temp: 112.9°F
Heat Index Cooling Degree Days Sun
Current: 102.2°F
Today: 103.7°F  10:34am
Yesterday: 111.6°F
Last Week: 111.6°F
Record: 127.2°F   26-Aug-2023
Today: 8.0
September: 143.7
2026 to Date: 2835.1
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
12:40 hrs:min
-00:01:58 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 7:05am
Sunset: 7:45pm
Moonrise: 3:02am
Moonset: 5:36pm
Full Moon: August 28 2026
New Moon: 03:28 UTC September 11 2026
Updated at Midnight
Current: 0.09 in   
7-Days Rain: 0.00 in   
7-Days ET: 1.35 in   
7-Day: -1.35 in 1.35 in water in deficit of what evaporated in last 7 days.
September: -1.35 in 1.35 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.14 kg/m3
Cloud Height: 4869 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:98%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
15.1 at 10:45 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  -   Labor Day's and Tonight's Outlook
Labor
Day
Labor Day: Sunny
Sunny

Hi 100 °F
NWS forecast: Sunny, with a high near 100. Heat index values as high as 104. South wind 0 to 10 mph, with gusts as high as 20 mph.
Tonight

Tonight: Clear
Clear

Lo 80 °F
NWS forecast: Clear. Low around 80, with temperatures rising to around 82 overnight. Heat index values as high as 105. South southeast wind 5 to 10 mph.
 NWS NWS Short Term Weather Forecast
Tonight

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

Thursday: Sunny
Sunny
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy
Friday

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