Extreme Heat Warning EXTREME HEAT WARNING - Plano, Collin County, Texas
Heat Advisory HEAT ADVISORY - Plano, Collin County, Texas
Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 22-Jul-2026 5:00pm - next update at 5:05pm  
Summary / Temperature Wind Precipitation Outlook


Mostly sunny, Dry
Mostly sunny, Dry

101.8°F Colder 1.2°F than last hour.
Dangerously Hot
Currently 101.8, Max: 104.6, Min: 84.0 Feels like:
122°F

24-hr
difference
-1.5°FColder 1.5°F than yesterday at this time.
TEMP HIGH LOW
Today 104.6°F
2:42pm
84.0°F
5:38am
Yesterday 104.3°F
2:53pm
78.7°F
6:47am
Record 109°F
2018
63°F
1970
Normal 96°F
76°F
 Wind from SE SE
5.6
Gust:
5.5
Light Breeze

60-Min Avg: 8.1 mph
120-Min Avg: 6.9 mph
Max Gust: 18.7 mph 1:39pm
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: 0.67 in
Rain Season:1 22.53 in
Rain Days: 57 in 2026
3 days since last rain
Tonight

Tonight: Mostly Clear
Mostly Clear

Barometer Humidity/Dew Point Moon
Current: 29.821 inHg  
1-Hr Trend: Steady
3-Hr Trend: Falling slowly
High: 29.886  |  Low: 29.815
Humidity: 48 % Increased 4% since last hour.
Humidex: 125.6°F
Dewpoint: 78.4°F Increased 1.5°F since last hour.
Wetbulb: 84.7°F
Waxing Gibbous
Waxing Gibbous, Moon at 8 days in cycle
64%
Illuminated
Current UV Index Current Solar Energy
   2.2    Low 
High: 6.0 @ 1:21pm
Time to Burn: 51 Mins
Energy: 0 W/m2 (83%)
High: 851 at  1:58pm
Apparent Temp: 121.1°F
Heat Index Cooling Degree Days Sun
Current: 122.2°F
Today: 126.2°F  4:24pm
Yesterday: 115.8°F
Last Week: 126.0°F
Record: 127.2°F   26-Aug-2023
Today: 15.9
July: 462.5
2026 to Date: 1657.4
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
14:00 hrs:min
-00:01:14 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:33am
Sunset: 8:33pm
Moonrise: 3:11pm
Moonset: 12:50am
Full Moon: July 29 2026
New Moon: 17:37 UTC August 12 2026
Updated at Midnight
Current: 0.34 in   
7-Days Rain: 0.67 in   
7-Days ET: 1.77 in   
7-Day: -1.1 in 1.1 in water in deficit of what evaporated in last 7 days.
July: -4.04 in 4.04 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.11 kg/m3
Cloud Height: 6106 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:9 ISS:Ok CON:4.6 RCP:99%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
25.6 at 5:00 PM
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  -   This Afternoon's and Tonight's Outlook
This
Afternoon
This Afternoon: Sunny
Sunny

Hi 104 °F
NWS forecast: Sunny, with a high near 104. Heat index values as high as 116. Northeast wind around 15 mph.
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 79 °F
NWS forecast: Mostly clear. Low around 79, with temperatures rising to around 81 overnight. Heat index values as high as 114. East northeast wind 5 to 15 mph.
 NWS NWS Short Term Weather Forecast
Tonight

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

Sunday: Sunny
Sunny
Lo 79 °F Hi 98 °F Lo 79 °F Hi 98 °F Lo 82 °F Hi 100 °F Lo 82 °F Hi 101 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.