Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 24-Sep-2026 5:00pm - next update at 5:05pm  
Summary / Temperature Wind Precipitation Outlook


Partly cloudy, Dry
Partly cloudy, Dry

91.9°F Colder 0.4°F than last hour.
Hot
Currently 91.9, Max: 92.9, Min: 74.5 Feels like:
97°F

24-hr
difference
-3.4°FColder 3.4°F than yesterday at this time.
TEMP HIGH LOW
Today 92.9°F
3:47pm
74.5°F
7:50am
Yesterday 97.9°F
3:37pm
75.7°F
7:19am
Record 102°F
2023
49°F
1989
Normal 86°F
66°F
 Wind from NE NE
4.5
Gust:
1.1
Light Breeze

60-Min Avg: 5.8 mph
120-Min Avg: 4.6 mph
Max Gust: 15.4 mph 7:14am
Month: 27.5 mph Sep 20
Today: 0.00 in
Yesterday: 0.00 in
Last
Rain:
7/19/2026
7:44 PM
September: 0.00 in
Last 7 Days: 0.00 in
Rain Season:1 22.54 in
Rain Days: 57 in 2026
67 days since last rain
Tonight

Tonight: Partly Cloudy
Partly Cloudy

Barometer Humidity/Dew Point Moon
Current: 30.017 inHg  
1-Hr Trend: Steady
3-Hr Trend: Falling
High: 30.141  |  Low: 30.016
Humidity: 47 %  
Humidex: 106.2°F
Dewpoint: 68.8°F Decreased 0.5°F since last hour.
Wetbulb: 76.3°F
Waxing Gibbous
Waxing Gibbous, Moon at 12 days in cycle
96%
Illuminated
Current UV Index Current Solar Energy
   0.9    Low 
High: 4.2 @ 12:30pm
Time to Burn: 124 Mins
Energy: 0 W/m2 (32%)
High: 816 at  12:30pm
Apparent Temp: 102.1°F
Heat Index Cooling Degree Days Sun
Current: 96.5°F
Today: 98.2°F  3:47pm
Yesterday: 106.7°F
Last Week: 107.9°F
Record: 127.2°F   26-Aug-2023
Today: 10.3
September: 538.0
2026 to Date: 3230.3
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
12:06 hrs:min
-00:02:01 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 7:16am
Sunset: 7:22pm
Moonrise: 6:20pm
Moonset: 5:09am
Full Moon: September 26 2026
New Moon: 15:51 UTC October 10 2026
Updated at Midnight
Current: 0.23 in   
7-Days Rain: 0.00 in   
7-Days ET: 1.60 in   
7-Day: -1.6 in 1.6 in water in deficit of what evaporated in last 7 days.
September: -5.55 in 5.55 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.15 kg/m3
Cloud Height: 6044 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:98%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
25.8 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: Mostly Sunny
Mostly Sunny

Hi 95 °F
NWS forecast: Mostly sunny, with a high near 95. Heat index values as high as 97. East wind 5 to 10 mph.
Tonight

Tonight: Partly Cloudy
Partly Cloudy

Lo 70 °F
NWS forecast: Partly cloudy. Low around 70, with temperatures rising to around 72 overnight. East southeast wind 5 to 10 mph.
 NWS NWS Short Term Weather Forecast
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Friday

Friday: Mostly Sunny
Mostly Sunny
Friday
Night
Friday Night: Mostly Cloudy
Mostly Cloudy
Saturday

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

Sunday: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Sunday
Night
Sunday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Monday

Monday: Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
Slight Chance Rain Showers then Slight Chance Showers And T-Storms
Lo 70 °F Hi 94 °F Lo 71 °F Hi 95 °F Lo 74 °F Hi 97 °F Lo 75 °F Hi 96 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.