Heat Advisory HEAT ADVISORY - Plano, Collin County, Texas
spacer
Updated: @ 29-Jul-2026 12:30am - next update at 12:35am  
Summary / Temperature Wind Precipitation Outlook


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

87.5°F Colder 1.5°F than last hour.
Warm
Currently 87.5, Max: 88.1, Min: 87.4 Feels like:
94°F

24-hr
difference
0.3°FWarmer 0.3°F than yesterday at this time.
TEMP HIGH LOW
Today 88.1°F
12:00am
87.4°F
12:28am
Yesterday 101.1°F
3:38pm
80.0°F
6:53am
Record 109°F
1912
67°F
1984
Normal 97°F
77°F
 Wind from S S
4.5
Gust:
5.5
Light Breeze

60-Min Avg: 6.9 mph
120-Min Avg: 3.5 mph
Max Gust: 12.7 mph 12:02am
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: 0.00 in
Rain Season:1 22.53 in
Rain Days: 57 in 2026
10 days since last rain
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny

Barometer Humidity/Dew Point Moon
Current: 29.818 inHg  
1-Hr Trend: Steady
3-Hr Trend: Rising
High: 29.820  |  Low: 29.814
Humidity: 61 % Increased 3% since last hour.
Humidex: 105.0°F
Dewpoint: 72.4°F  
Wetbulb: 77.1°F
Full Moon
Full Moon, Moon at 14 days in cycle
100%
Illuminated
UV Forecast Current Solar Energy
29-Jul-2026   Very High   10.5   
30-Jul-2026   Very High   10.6   
31-Jul-2026   Very High   10.9   
Energy: 0 W/m2 (0%)
High: 0 at  12:00am
Apparent Temp: 92.3°F
Heat Index Cooling Degree Days Sun
Current: 94.4°F
Today: 95.4°F  12:00am
Yesterday: 111.7°F
Last Week: 126.0°F
Record: 127.2°F   26-Aug-2023
Today: 0.2
July: 618.8
2026 to Date: 1814.2
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
13:51 hrs:min
-00:01:25 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:38am
Sunset: 8:29pm
Moonrise: 8:18pm
Moonset: 6:32am
Full Moon: July 29 2026
New Moon: 17:37 UTC August 12 2026
Updated at Midnight
Current: 0.12 in   
7-Days Rain: 0.00 in   
7-Days ET: 2.07 in   
7-Day: -2.07 in 2.07 in water in deficit of what evaporated in last 7 days.
July: -6.11 in 6.11 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.15 kg/m3
Cloud Height: 4213 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:95%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
10.5 at 00:30 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  -   Tonight's and Wednesday's Outlook
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 107. South wind 5 to 10 mph.
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny

Hi 101 °F
NWS forecast: Mostly sunny, with a high near 101. Heat index values as high as 110. South southwest wind 5 to 10 mph.
 NWS NWS Short Term Weather Forecast
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
Thursday

Thursday: Sunny
Sunny
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Friday

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

Saturday: Sunny
Sunny
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Hi 101 °F Lo 82 °F Hi 102 °F Lo 82 °F Hi 103 °F Lo 82 °F Hi 99 °F Lo 75 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.