Heat Advisory HEAT ADVISORY - Plano, Collin County, Texas
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Updated: @ 30-Jul-2026 8:50am - next update at 8:55am  
Summary / Temperature Wind Precipitation Outlook


Mostly sunny, Dry
Mostly sunny, Dry

85.7°F Warmer 2.7°F than last hour.
Warm
Currently 85.7, Max: 87.7, Min: 81.4 Feels like:
92°F

24-hr
difference
0°F 
TEMP HIGH LOW
Today 87.7°F
12:00am
81.4°F
6:49am
Yesterday 100.0°F
4:36pm
81.1°F
6:42am
Record 106°F
1986
63°F
1971
Normal 97°F
77°F
 Wind from SSE SSE
4.2
Gust:
5.5
Light Breeze

60-Min Avg: 3.5 mph
120-Min Avg: Calm
Max Gust: 13.2 mph 1:31am
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
11 days since last rain
Tonight

Tonight: Mostly Clear
Mostly Clear

Barometer Humidity/Dew Point Moon
Current: 29.931 inHg Rising 0.01 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Rising
High: 29.935  |  Low: 29.835
Humidity: 65 % Decreased 4% since last hour.
Humidex: 103.4°F
Dewpoint: 72.6°F Increased 0.9°F since last hour.
Wetbulb: 76.7°F
Full Moon
Full Moon, Moon at 15 days in cycle
99%
Illuminated
Current UV Index Current Solar Energy
   0.6    Low 
High: 0.6 @ 8:35am
Time to Burn: 187 Mins
Energy: 0 W/m2 (62%)
High: 299 at  8:42am
Apparent Temp: 98.1°F
Heat Index Cooling Degree Days Sun
Current: 92.4°F
Today: 93.9°F  12:01am
Yesterday: 111.7°F
Last Week: 111.6°F
Record: 127.2°F   26-Aug-2023
Today: 7.2
July: 651.1
2026 to Date: 1846.6
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
13:49 hrs:min
-00:01:26 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:39am
Sunset: 8:28pm
Moonrise: 8:52pm
Moonset: 7:32am
Full Moon: July 29 2026
New Moon: 17:37 UTC August 12 2026
Updated at Midnight
Current: 0.08 in   
7-Days Rain: 0.00 in   
7-Days ET: 2.05 in   
7-Day: -2.05 in 2.05 in water in deficit of what evaporated in last 7 days.
July: -6.41 in 6.41 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.15 kg/m3
Cloud Height: 3759 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:
7.7 at 08:50 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 5 to 10 mph.
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 82 °F
NWS forecast: Mostly clear. Low around 82, with temperatures rising to around 84 overnight. Heat index values as high as 105. South wind around 10 mph.
 NWS NWS Short Term Weather Forecast
Tonight

Tonight: Mostly Clear
Mostly Clear
Friday

Friday: Sunny
Sunny
Friday
Night
Friday Night: Partly Cloudy
Partly Cloudy
Saturday

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

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

Monday: Sunny
Sunny
Lo 82 °F Hi 102 °F Lo 82 °F Hi 98 °F Lo 75 °F Hi 95 °F Lo 75 °F Hi 97 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.