Heat Advisory HEAT ADVISORY - Plano, Collin County, Texas
spacer
Updated: @ 25-Jul-2026 11:45am - next update at 11:50am  
Summary / Temperature Wind Precipitation Outlook


Mostly sunny, Dry
Mostly sunny, Dry

91.6°F Warmer 1.9°F than last hour.
Hot
Currently 91.6, Max: 91.9, Min: 81.2 Feels like:
98°F

24-hr
difference
8.3°FWarmer 8.3°F than yesterday at this time.
TEMP HIGH LOW
Today 91.9°F
11:39am
81.2°F
7:23am
Yesterday 94.9°F
4:49pm
78.5°F
7:00am
Record 109°F
1954
65°F
1915
Normal 97°F
77°F
 Wind from WSW WSW
6.0
Gust:
4.4
Light Breeze

60-Min Avg: 3.5 mph
120-Min Avg: 3.5 mph
Max Gust: 19.8 mph 10:22am
Month: 42.9 mph Jul 15
Today: 0.00 in
Yesterday: 0.00 in
Last
Rain:
7/19/2026
7:45 PM
July: 1.48 in
Last 7 Days: 0.01 in
Rain Season:1 22.53 in
Rain Days: 57 in 2026
6 days since last rain
Tonight

Tonight: Mostly Clear
Mostly Clear

Barometer Humidity/Dew Point Moon
Current: 30.050 inHg  
1-Hr Trend: Steady
3-Hr Trend: Steady
High: 30.059  |  Low: 29.972
Humidity: 50 % Decreased 3% since last hour.
Humidex: 107.2°F
Dewpoint: 70.3°F Increased 0.1°F since last hour.
Wetbulb: 77.1°F
Waxing Gibbous
Waxing Gibbous, Moon at 11 days in cycle
86%
Illuminated
Current UV Index Current Solar Energy
   4.5    Medium 
High: 4.5 @ 11:43am
Time to Burn: 25 Mins
Energy: 0 W/m2 (67%)
High: 723 at  11:44am
Apparent Temp: 109.4°F
Heat Index Cooling Degree Days Sun
Current: 97.5°F
Today: 98.3°F  11:22am
Yesterday: 107.6°F
Last Week: 126.0°F
Record: 127.2°F   26-Aug-2023
Today: 9.3
July: 527.4
2026 to Date: 1722.5
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
13:56 hrs:min
-00:01:18 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:35am
Sunset: 8:31pm
Moonrise: 6:03pm
Moonset: 2:47am
Full Moon: July 29 2026
New Moon: 17:37 UTC August 12 2026
Updated at Midnight
Current: 0.20 in   
7-Days Rain: 0.01 in   
7-Days ET: 1.91 in   
7-Day: -1.9 in 1.9 in water in deficit of what evaporated in last 7 days.
July: -4.82 in 4.82 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.15 kg/m3
Cloud Height: 5624 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:99%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
21.6 at 11:45 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  -   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 108. South southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 81 °F
NWS forecast: Mostly clear. Low around 81, with temperatures rising to around 83 overnight. Heat index values as high as 106. South southwest wind around 10 mph.
 NWS NWS Short Term Weather Forecast
Tonight

Tonight: Mostly Clear
Mostly Clear
Sunday

Sunday: Sunny
Sunny
Sunday
Night
Sunday Night: Clear
Clear
Monday

Monday: Sunny
Sunny
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday

Tuesday: Sunny
Sunny
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday

Wednesday: Sunny
Sunny
Lo 81 °F Hi 101 °F Lo 81 °F Hi 102 °F Lo 83 °F Hi 103 °F Lo 84 °F Hi 103 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.