Heat Advisory HEAT ADVISORY - Plano, Collin County, Texas
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Updated: @ 25-Jul-2021 11:10am - next update at 11:15am  
Summary / Temperature Wind Precipitation Outlook


Sunny, Dry
Sunny, Dry

90.4°F Warmer 2.5°F than last hour.
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Currently 90.4, Max: 90.5, Min: 78.1 Feels like:
°F

24-hr
difference
2.2°FWarmer 2.2°F than yesterday at this time.
TEMP HIGH LOW
Today 90.5°F
10:59am
78.1°F
7:00am
Yesterday 97.3°F
4:44pm
78.0°F
6:47am
Record 109°F
1954
65°F
1915
Normal 97°F
77°F
 Wind from SSW SSW
3.9
Gust:
1.1
Light Breeze
60-Min Avg: 3.5 mph
120-Min Avg: 4.6 mph
Max Gust: 16.1 mph 1:14am
Month: 29.1 mph Jul 14
Today: 0.00 in
Yesterday: 0.00 in
Last
Rain:
7/20/2021
3:36 AM
July: 3.58 in
Last 7 Days: 1.84 in
Rain Season:1 32.42 in
Rain Days: 64 in 2021
5 days since last rain.
Tonight

Tonight: Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.
Mostly Clear


Barometer Humidity/Dew Point Moon
Current: 29.996 inHg  
1-Hr Trend: Steady
3-Hr Trend: Rising slowly
High: 29.999  | Low: 29.956
Humidity: 59 % Decreased 4% since last hour.
Humidex: 109.6°F
Dew Point: 74.1°F Increased 0.4°F since last hour.
Wetbulb: 79.0°F
Waning Gibbous
Waning Gibbous, Moon at 16 days in cycle
97%
Illuminated
Current UV Index Current Solar Energy
   4.1    Medium 
High: 4.1 @ 11:08am
Time to Burn: 27 Mins
Energy: 0 W/m2 (92%)
High: 775 at  11:09am
Apparent Temp: 111.4°F
Heat Index Cooling Degree Days Sun
Current: 101.1°F
Today: 101.2°F  11:08am
Yesterday: 112.5°F
Last Week: 112.3°F
Record: 122.7°F   29-Aug-2020
Today: 8.0
July: 417.7
2021 to Date: 1149.3
Heating Degree Days
2021 to Date: 1443.1
Daylight: Possible hours of Daylight
13:56
-00:01:18 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:35am
Sunset: 8:31pm
Moonrise: 9:34pm
Moonset: 8:04am
Full Moon: July 24 2021
New Moon: 13:51 UTC August 8 2021
Updated at Midnight
Current: 0.15 in   
7-Days Rain: 1.84 in   
7-Days ET: 1.52 in   
7-Day: 0.32 in 0.32 in water in excess of what evaporated in last 7 days.
July: -8.57 in 8.57 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.15 kg/m3
Cloud Height: 4482 ft
HIGHS: LOWS:
108.1°F
26-Jul-2016
-0.9°F
15-Feb-2021
Daytime Records
  106.7 F on: Jul 21 2018   10.9F on: Feb 16 2021
Nitetime Records
  94.1F on: Jul 23 2018 8.1F on: Feb 15 2021
ICN:0 ISS:Ok CON:4.9 RCP:98%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
12.3 at 11:10 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: Mostly sunny and hot, with a high near 100. Heat index values as high as 105. Southwest wind 5 to 10 mph.
Hot


Hi 100 °F
NWS forecast: Mostly sunny and hot, with a high near 100. Heat index values as high as 105. Southwest wind 5 to 10 mph.
Tonight

Tonight: Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.
Mostly Clear


Lo 77 °F
NWS forecast: Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.
 NWS NWS Short Term Weather Forecast
Tonight

Tonight: Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.
Mostly Clear

Monday

Monday: Sunny and hot, with a high near 101. Heat index values as high as 106. South southwest wind 5 to 10 mph.
Hot

Monday
Night
Monday Night: Mostly clear, with a low around 79. Southeast wind 5 to 10 mph.
Mostly Clear

Tuesday

Tuesday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 99. South southeast wind 5 to 10 mph.
Mostly Sunny
then Slight
Chance
T-storms
Tuesday
Night
Tuesday Night: A 20 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 78. Southeast wind 5 to 10 mph.
Slight Chance
T-storms then
Partly Cloudy
Wednesday

Wednesday: Mostly sunny, with a high near 96. Southeast wind 5 to 10 mph.
Mostly Sunny

Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 78. Southeast wind 5 to 10 mph.
Partly Cloudy

Thursday

Thursday: Sunny, with a high near 98. South wind 5 to 10 mph.
Sunny

Lo 77 °F Hi 101 °F Lo 79 °F Hi 99 °F Lo 78 °F Hi 96 °F Lo 78 °F Hi 98 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.