Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 28-May-2026 3:10pm - next update at 3:15pm  
Summary / Temperature Wind Precipitation Outlook


Mostly cloudy, Dry
Mostly cloudy, Dry

84.6°F Warmer 3.6°F than last hour.
Warm
Currently 84.6, Max: 85.3, Min: 66.6 Feels like:
89°F

24-hr
difference
8.4°FWarmer 8.4°F than yesterday at this time.
TEMP HIGH LOW
Today 85.3°F
1:08pm
66.6°F
6:05am
Yesterday 80.6°F
4:59pm
67.1°F
2:30am
Record 107°F
1927
51°F
1907
Normal 87°F
68°F
 Wind from SW SW
2.4
Gust:
2.2
Light Air

60-Min Avg: Calm
120-Min Avg: 2.3 mph
Max Gust: 12.7 mph 12:22pm
Month: 41.7 mph May 17
Today: 0.00 in
Yesterday: 1.20 in
Last
Rain:
5/27/2026
12:21 PM
May: 4.47 in
Last 7 Days: 1.91 in
Rain Season:1 15.39 in
Rain Days: 43 in 2026
9 rain days in May
Tonight

Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Mostly clear, with a low around 70. Southeast wind around 5 mph becoming calm  in the evening.
Chance
T-storms then
Mostly Clear

Barometer Humidity/Dew Point Moon
Current: 29.884 inHg Falling 0.02 °F/hr
1-Hr Trend: Falling slowly
3-Hr Trend: Falling
High: 29.950  |  Low: 29.841
Humidity: 60 % Decreased 7% since last hour.
Humidex: 99.2°F
Dewpoint: 69.2°F Increased 0.1°F since last hour.
Wetbulb: 74.3°F
Waxing Gibbous
Waxing Gibbous, Moon at 12 days in cycle
94%
Illuminated
Current UV Index Current Solar Energy
   2.3    Low 
High: 5.8 @ 12:33pm
Time to Burn: 49 Mins
Energy: 0 W/m2 (30%)
High: 1023 at  12:50pm
Apparent Temp: 98.7°F
Heat Index Cooling Degree Days Sun
Current: 89.0°F
Today: 90.3°F  2:58pm
Yesterday: 83.6°F
Last Week: 94.4°F
Record: 127.2°F   26-Aug-2023
Today: 3.4
May: 229.6
2026 to Date: 591.5
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
14:07 hrs:min
+ 00:01:01 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:20am
Sunset: 8:27pm
Moonrise: 6:27pm
Moonset: 4:19am
Full Moon: May 31 2026
New Moon: 02:55 UTC June 15 2026
Updated at Midnight
Current: 0.15 in   
7-Days Rain: 1.91 in   
7-Days ET: 1.07 in   
7-Day: 0.84 in 0.84 in water in excess of what evaporated in last 7 days.
May: -0.36 in 0.36 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.16 kg/m3
Cloud Height: 4284 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:19 ISS:Ok CON:4.6 RCP:99%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
11.0 at 3:10 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: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny, with a high near 86. West northwest wind around 5 mph.
Chance
T-storms

Hi 86 °F
NWS forecast: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 86. West northwest wind around 5 mph.
Tonight

Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Mostly clear, with a low around 70. Southeast wind around 5 mph becoming calm  in the evening.
Chance
T-storms then
Mostly Clear

Lo 70 °F
NWS forecast: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 70. Southeast wind around 5 mph becoming calm in the evening.
 NWS NWS Short Term Weather Forecast
Tonight

Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Mostly clear, with a low around 70. Southeast wind around 5 mph becoming calm  in the evening.
Chance
T-storms then
Mostly Clear
Friday

Friday: Mostly sunny, with a high near 91. Southeast wind around 5 mph becoming west northwest in the afternoon.
Mostly Sunny

Friday
Night
Friday Night: Partly cloudy, with a low around 75. South southeast wind around 5 mph.
Partly Cloudy

Saturday

Saturday: Mostly sunny, with a high near 92. South wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Sunny

Saturday
Night
Saturday Night: Partly cloudy, with a low around 76. South wind around 10 mph.
Partly Cloudy

Sunday

Sunday: Sunny, with a high near 94. South wind around 10 mph.
Sunny

Sunday
Night
Sunday Night: Mostly clear, with a low around 76. South southeast wind around 10 mph.
Mostly Clear

Monday

Monday: Sunny, with a high near 94. South wind around 5 mph.
Sunny

Lo 70 °F Hi 91 °F Lo 75 °F Hi 92 °F Lo 76 °F Hi 94 °F Lo 76 °F Hi 94 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.