Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 25-Sep-2026 4:55pm - next update at 5:00pm  
Summary / Temperature Wind Precipitation Outlook


Mostly sunny, Dry
Mostly sunny, Dry

90.4°F Colder 0.8°F than last hour.
Hot
Currently 90.4, Max: 91.6, Min: 68.2 Feels like:
92°F

24-hr
difference
-0.8°FColder 0.8°F than yesterday at this time.
TEMP HIGH LOW
Today 91.6°F
4:02pm
68.2°F
7:51am
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 ENE ENE
4.8
Gust:
4.4
Light Breeze

60-Min Avg: 2.3 mph
120-Min Avg: 3.5 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
Tonight

Tonight: Partly Cloudy
Partly Cloudy

Barometer Humidity/Dew Point Moon
Current: 29.986 inHg Falling 0.01 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Falling
High: 30.124  |  Low: 29.984
Humidity: 43 % Increased 1% since last hour.
Humidex: 101.6°F
Dewpoint: 64.9°F Increased 0.2°F since last hour.
Wetbulb: 73.7°F
Full Moon
Full Moon, Moon at 13 days in cycle
99%
Illuminated
Current UV Index Current Solar Energy
   0.9    Low 
High: 4.5 @ 1:17pm
Time to Burn: 124 Mins
Energy: 0 W/m2 (68%)
High: 827 at  1:17pm
Apparent Temp: 100.5°F
Heat Index Cooling Degree Days Sun
Current: 92.2°F
Today: 94.8°F  4:31pm
Yesterday: 98.2°F
Last Week: 107.9°F
Record: 127.2°F   26-Aug-2023
Today: 6.8
September: 552.4
2026 to Date: 3244.8
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: 0.20 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: 1.15 kg/m3
Cloud Height: 6601 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:
31.9 at 4:55 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 92 °F
NWS forecast: Mostly sunny. High near 92, with temperatures falling to around 90 in the afternoon. East wind 5 to 10 mph.
Tonight

Tonight: Partly Cloudy
Partly Cloudy

Lo 72 °F
NWS forecast: Partly cloudy, with a low around 72. East southeast wind 5 to 10 mph.
 NWS NWS Short Term Weather Forecast
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Saturday

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

Sunday: Slight Chance Rain Showers
Slight Chance Rain Showers
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday

Monday: Sunny
Sunny
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Tuesday

Tuesday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Lo 72 °F Hi 94 °F Lo 74 °F Hi 97 °F Lo 76 °F Hi 96 °F Lo 77 °F Hi 94 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.