Heat Advisory HEAT ADVISORY - Plano, Collin County, Texas
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Updated: @ 14-Aug-2026 1:55am - next update at 2:00am  
Summary / Temperature Wind Precipitation Outlook


Night time, Dry, Clear skies
Night time, Dry, Clear skies

87.3°F Colder 1.5°F than last hour.
Warm
Currently 87.3, Max: 89.6, Min: 87.2 Feels like:
93°F

24-hr
difference
0.4°FWarmer 0.4°F than yesterday at this time.
TEMP HIGH LOW
Today 89.6°F
12:00am
87.2°F
1:54am
Yesterday 102.4°F
3:30pm
81.1°F
7:00am
Record 106°F
2012
62°F
1967
Normal 97°F
76°F
 Wind from S S
5.1
Gust:
8.8
Light Breeze

60-Min Avg: 12.7 mph
120-Min Avg: 8.1 mph
Max Gust: 25.3 mph 1:05am
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
10 days since last rain
Friday

Friday: Sunny
Sunny

Barometer Humidity/Dew Point Moon
Current: 29.918 inHg Rising 0.01 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Rising
High: 29.920  |  Low: 29.883
Humidity: 59 % Increased 2% since last hour.
Humidex: 103.7°F
Dewpoint: 71.2°F Decreased 0.3°F since last hour.
Wetbulb: 76.3°F
Waxing Crescent
Waxing Crescent, Moon at 1 days in cycle
3%
Illuminated
UV Forecast Current Solar Energy
14-Aug-2026   Very High   9.2   
15-Aug-2026   Very High   9.7   
16-Aug-2026   Very High   9.7   
Energy: 0 W/m2 (0%)
High: 0 at  12:00am
Apparent Temp: 91.4°F
Heat Index Cooling Degree Days Sun
Current: 93.3°F
Today: 96.2°F  12:32am
Yesterday: 111.2°F
Last Week: 114.7°F
Record: 127.2°F   26-Aug-2023
Today: 1.5
August: 312.8
2026 to Date: 2206.0
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
13:25 hrs:min
-00:01:45 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:49am
Sunset: 8:14pm
Moonrise: 8:48am
Moonset: 8:52pm
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: 2.26 in   
7-Day: -2.26 in 2.26 in water in deficit of what evaporated in last 7 days.
August: -4 in 4 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.15 kg/m3
Cloud Height: 4436 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:
12.0 at 01:55 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  -   Overnight's and Friday's Outlook
Overnight

Overnight: Mostly Clear
Mostly Clear

Lo 79 °F
NWS forecast: Mostly clear. Low around 79, with temperatures rising to around 82 overnight. South wind around 15 mph, with gusts as high as 25 mph.
Friday

Friday: Sunny
Sunny

Hi 101 °F
NWS forecast: Sunny, with a high near 101. Heat index values as high as 106. South wind around 15 mph, with gusts as high as 25 mph.
 NWS NWS Short Term Weather Forecast
Friday

Friday: Sunny
Sunny
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday

Saturday: Sunny
Sunny
Saturday
Night
Saturday Night: Clear
Clear
Sunday

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

Monday: Sunny
Sunny
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Hi 101 °F Lo 81 °F Hi 100 °F Lo 81 °F Hi 101 °F Lo 81 °F Hi 102 °F Lo 81 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.