Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 28-Aug-2026 8:40pm - next update at 8:45pm  
Summary / Temperature Wind Precipitation Outlook


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

92.5°F Colder 2.8°F than last hour.
Hot
Currently 92.5, Max: 101.5, Min: 75.2 Feels like:
95°F

24-hr
difference
1.1°FWarmer 1.1°F than yesterday at this time.
TEMP HIGH LOW
Today 101.5°F
4:20pm
75.2°F
6:39am
Yesterday 99.8°F
4:10pm
77.8°F
7:03am
Record 108°F
1901
56°F
1906
Normal 94°F
74°F
 Wind from SE SE
2.2
Gust:
2.2
Light Air

60-Min Avg: 2.3 mph
120-Min Avg: 8.1 mph
Max Gust: 15.4 mph 2:21pm
Month: 30.8 mph Aug 9
Today: 0.00 in
Yesterday: 0.00 in
Last
Rain:
8/4/2026
6:09 PM
August: 0.01 in
Last 7 Days: 0.00 in
Rain Season:1 22.54 in
Rain Days: 58 in 2026
24 days since last rain
Saturday

Saturday: Sunny
Sunny

Barometer Humidity/Dew Point Moon
Current: 29.932 inHg Rising 0.01 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Rising slowly
High: 30.039  |  Low: 29.903
Humidity: 40 % Increased 5% since last hour.
Humidex: 103.5°F
Dewpoint: 64.7°F Increased 1.3°F since last hour.
Wetbulb: 74.3°F
Full Moon
Full Moon, Moon at 15 days in cycle
99%
Illuminated
UV Forecast Current Solar Energy
28-Aug-2026   Very High   9.6   
29-Aug-2026   Very High   9.2   
30-Aug-2026   Very High   9.3   
Energy: 0 W/m2 (0%)
High: 858 at  2:06pm
Apparent Temp: 96.4°F
Heat Index Cooling Degree Days Sun
Current: 94.6°F
Today: 108.9°F  2:59pm
Yesterday: 109.1°F
Last Week: 116.0°F
Record: 127.2°F   26-Aug-2023
Today: 15.1
August: 711.0
2026 to Date: 2605.0
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
12:57 hrs:min
-00:01:54 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:59am
Sunset: 7:56pm
Moonrise: 8:20pm
Moonset: 8:23am
Full Moon: August 28 2026
New Moon: 03:28 UTC September 11 2026
Updated at Midnight
Current: 0.26 in   
7-Days Rain: 0.00 in   
7-Days ET: 1.79 in   
7-Day: -1.8 in 1.8 in water in deficit of what evaporated in last 7 days.
August: -8.02 in 8.02 in water in deficit of what evaporated this month.
Irrigation System: Ready
Other Conditions
Air Density: 1.14 kg/m3
Cloud Height: 7126 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:98%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
37.8 at 8:40 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  -   Tonight's and Saturday's Outlook
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 78 °F
NWS forecast: Mostly clear. Low around 78, with temperatures rising to around 80 overnight. Heat index values as high as 99. East southeast wind around 5 mph.
Saturday

Saturday: Sunny
Sunny

Hi 101 °F
NWS forecast: Sunny, with a high near 101. Heat index values as high as 105. South southeast wind around 5 mph.
 NWS NWS Short Term Weather Forecast
Saturday

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

Sunday: Sunny
Sunny
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday

Monday: Sunny
Sunny
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday

Tuesday: Sunny
Sunny
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Hi 101 °F Lo 79 °F Hi 101 °F Lo 80 °F Hi 100 °F Lo 80 °F Hi 99 °F Lo 79 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.