Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 25-Sep-2026 4:40am - next update at 4:45am  
Summary / Temperature Wind Precipitation Outlook


Night time, Dry, Clear
Night time, Dry, Clear

71.9°F Colder 1.7°F than last hour.
Comfortable
Currently 71.9, Max: 78.8, Min: 71.8 Feels like:
76°F

24-hr
difference
-5.8°FColder 5.8°F than yesterday at this time.
TEMP HIGH LOW
Today 78.8°F
12:00am
71.8°F
4:39am
Yesterday 92.8°F
3:47pm
74.5°F
7:50am
Record 102°F
2005
44°F
1989
Normal 86°F
65°F
 Wind from ESE ESE
4.7
Gust:
2.2
Light Breeze

60-Min Avg: 3.5 mph
120-Min Avg: 5.8 mph
Max Gust: 15.4 mph 2:51am
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
68 days since last rain
Friday

Friday: Mostly Sunny
Mostly Sunny

Barometer Humidity/Dew Point Moon
Current: 30.067 inHg Falling 0.01 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Falling slowly
High: 30.091  |  Low: 30.064
Humidity: 64 % Increased 3% since last hour.
Humidex: 79.1°F
Dewpoint: 59.1°F Decreased 0.3°F since last hour.
Wetbulb: 64.2°F
Waxing Gibbous
Waxing Gibbous, Moon at 13 days in cycle
98%
Illuminated
UV Forecast Current Solar Energy
25-Sep-2026   High   7.4   
26-Sep-2026   High   6.9   
27-Sep-2026   High   7.2   
Energy: 0 W/m2 (0%)
High: 0 at  12:00am
Apparent Temp: 72.3°F
Heat Index Cooling Degree Days Sun
Current: 75.6°F
Today: 78.8°F  12:00am
Yesterday: 98.2°F
Last Week: 107.9°F
Record: 127.2°F   26-Aug-2023
Today: 2.2
September: 547.8
2026 to Date: 3240.2
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
12:03 hrs:min
-00:02:02 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 7:17am
Sunset: 7:20pm
Moonrise: 6:48pm
Moonset: 6:10am
Full Moon: September 26 2026
New Moon: 15:51 UTC October 10 2026
Updated at Midnight
Current: 0.07 in   
7-Days Rain: 0.00 in   
7-Days ET: 1.57 in   
7-Day: -1.57 in 1.57 in water in deficit of what evaporated in last 7 days.
September: -5.75 in 5.75 in water in deficit of what evaporated this month.
Irrigation System: Ready
Other Conditions
Air Density: 1.19 kg/m3
Cloud Height: 3694 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:1 ISS:Ok CON:4.6 RCP:99%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
7.3 at 04:40 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  -   Overnight's and Friday's Outlook
Overnight

Overnight: Partly Cloudy
Partly Cloudy

Lo 69 °F
NWS forecast: Partly cloudy, with a low around 69. East southeast wind 5 to 10 mph.
Friday

Friday: Mostly Sunny
Mostly Sunny

Hi 92 °F
NWS forecast: Mostly sunny. High near 92, with temperatures falling to around 90 in the afternoon. East southeast wind around 5 mph.
 NWS NWS Short Term Weather Forecast
Friday

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

Saturday: Mostly Sunny
Mostly Sunny
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday

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

Monday: Mostly Sunny
Mostly Sunny
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Hi 92 °F Lo 72 °F Hi 93 °F Lo 74 °F Hi 96 °F Lo 75 °F Hi 96 °F Lo 76 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.