Heat Advisory HEAT ADVISORY - Plano, Collin County, Texas
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Updated: @ 17-Jun-2026 10:35am - next update at 10:40am  
Summary / Temperature Wind Precipitation Outlook


Mostly sunny, Dry
Mostly sunny, Dry

84.5°F Warmer 2.1°F than last hour.
Warm
Currently 84.5, Max: 84.5, Min: 74.8 Feels like:
92°F

24-hr
difference
6.3°FWarmer 6.3°F than yesterday at this time.
TEMP HIGH LOW
Today 84.5°F
10:34am
74.8°F
6:03am
Yesterday 89.9°F
4:30pm
72.0°F
5:34am
Record 105°F
1911
58°F
1981
Normal 92°F
73°F
 Wind from SSE SSE
4.2
Gust:
8.8
Light Breeze

60-Min Avg: 9.2 mph
120-Min Avg: 9.2 mph
Max Gust: 24.2 mph 9:26am
Month: 36.3 mph Jun 7
Today: 0.00 in
Yesterday: 0.00 in
Last
Rain:
6/14/2026
8:24 PM
June: 2.38 in
Last 7 Days: 0.44 in
Rain Season:1 17.78 in
Rain Days: 49 in 2026
2 days since last rain
Tonight

Tonight: Mostly clear, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly Clear


Barometer Humidity/Dew Point Moon
Current: 29.691 inHg Falling 0.01 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Steady
High: 29.747  |  Low: 29.679
Humidity: 71 % Decreased 3% since last hour.
Humidex: 103.7°F
Dewpoint: 74.1°F Increased 0.9°F since last hour.
Wetbulb: 77.2°F
Waxing Crescent
Waxing Crescent, Moon at 2 days in cycle
9%
Illuminated
Current UV Index Current Solar Energy
   3.5    Medium 
High: 3.5 @ 10:33am
Time to Burn: 32 Mins
Energy: 0 W/m2 (84%)
High: 787 at  10:34am
Apparent Temp: 105.1°F
Heat Index Cooling Degree Days Sun
Current: 91.7°F
Today: 91.9°F  10:34am
Yesterday: 97.9°F
Last Week: 107.8°F
Record: 127.2°F   26-Aug-2023
Today: 5.7
June: 267.5
2026 to Date: 924.1
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
14:19 hrs:min
+ 00:00:13 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:18am
Sunset: 8:37pm
Moonrise: 8:55am
Moonset: 10:37pm
Full Moon: June 29 2026
New Moon: 09:44 UTC July 14 2026
Updated at Midnight
Current: 0.13 in   
7-Days Rain: 0.44 in   
7-Days ET: 1.36 in   
7-Day: -0.92 in 0.92 in water in deficit of what evaporated in last 7 days.
June: -0.92 in 0.92 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.15 kg/m3
Cloud Height: 3145 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:3 ISS:Ok CON:4.6 RCP:98%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
4.6 at 10:35 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, with a high near 93. Heat index values as high as 102. South wind around 15 mph, with gusts as high as 25 mph.
Sunny


Hi 93 °F
NWS forecast: Sunny, with a high near 93. Heat index values as high as 102. South wind around 15 mph, with gusts as high as 25 mph.
Tonight

Tonight: Mostly clear, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly Clear


Lo 76 °F
NWS forecast: Mostly clear, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
 NWS NWS Short Term Weather Forecast
Tonight

Tonight: Mostly clear, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly Clear

Thursday

Thursday: Mostly sunny, with a high near 97. Heat index values as high as 107. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Sunny

Thursday
Night
Thursday Night: A slight chance of showers, then a chance of showers and thunderstorms after 10pm.  Increasing clouds, with a low around 78. Southeast wind 5 to 15 mph.  Chance of precipitation is 40%.
Slight Chance
T-storms then
Chance
Showers
Juneteenth

Juneteenth: A 40 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly cloudy, with a high near 94. East wind 5 to 10 mph.
Chance
T-storms then
Chance
Showers
Friday
Night
Friday Night: Showers and thunderstorms likely, mainly after 1am.  Mostly cloudy, with a low around 77. East wind 5 to 10 mph.  Chance of precipitation is 60%.
Chance
T-storms then
T-storms
Likely
Saturday

Saturday: A 20 percent chance of showers and thunderstorms.  Partly sunny, with a high near 94. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Slight Chance
T-storms

Saturday
Night
Saturday Night: Partly cloudy, with a low around 78. South wind around 15 mph, with gusts as high as 20 mph.
Partly Cloudy

Sunday

Sunday: Mostly sunny, with a high near 98. South wind 15 to 20 mph, with gusts as high as 30 mph.
Mostly Sunny

Lo 76 °F Hi 97 °F Lo 78 °F Hi 94 °F Lo 77 °F Hi 94 °F Lo 78 °F Hi 98 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.