Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 28-May-2026 11:15am - next update at 11:20am  
Summary / Temperature Wind Precipitation Outlook


Mostly cloudy, Dry
Mostly cloudy, Dry

77.8°F Warmer 1.2°F than last hour.
Comfortable
Currently 77.8, Max: 77.8, Min: 66.6 Feels like:
80°F

24-hr
difference
7.4°FWarmer 7.4°F than yesterday at this time.
TEMP HIGH LOW
Today 77.8°F
11:14am
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
 Calm WSW
0.0
Gust:
0.0
Calm

60-Min Avg: 1.2 mph
120-Min Avg: Calm
Max Gust: 6.9 mph 3:37am
Month: 41.7 mph May 17
Today: 0.00 in
Storm Rain: 1.05 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 slight chance of showers and thunderstorms before 10pm, then a slight chance of showers after 4am.  Partly cloudy, with a low around 72. North wind around 5 mph becoming southeast in the evening.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Slight Chance
Showers

Barometer Humidity/Dew Point Moon
Current: 29.950 inHg  
1-Hr Trend: Steady
3-Hr Trend: Rising
High: 29.950  |  Low: 29.841
Humidity: 76 % Decreased 1% since last hour.
Humidex: 92.8°F
Dewpoint: 69.6°F Increased 0.9°F since last hour.
Wetbulb: 72.4°F
Waxing Gibbous
Waxing Gibbous, Moon at 12 days in cycle
93%
Illuminated
Current UV Index Current Solar Energy
   2.3    Low 
High: 2.3 @ 11:14am
Time to Burn: 49 Mins
Energy: 0 W/m2 (32%)
High: 376 at  10:49am
Apparent Temp: 92.8°F
Heat Index Cooling Degree Days Sun
Current: 79.6°F
Today: 77.8°F  11:14am
Yesterday: 83.6°F
Last Week: 94.4°F
Record: 127.2°F   26-Aug-2023
Today: 2.2
May: 228.4
2026 to Date: 590.3
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: 0.05 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: 1.17 kg/m3
Cloud Height: 2626 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:3 ISS:Ok CON:4.6 RCP:99%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
2.4 at 11:15 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  -   Today's and Tonight's Outlook
Today

Today: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 87. West northwest wind around 5 mph.
Slight Chance
T-storms


Hi 87 °F
NWS forecast: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 87. West northwest wind around 5 mph.
Tonight

Tonight: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers after 4am.  Partly cloudy, with a low around 72. North wind around 5 mph becoming southeast in the evening.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Slight Chance
Showers

Lo 72 °F
NWS forecast: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers after 4am. Partly cloudy, with a low around 72. North wind around 5 mph becoming southeast in the evening. Chance of precipitation is 20%.
 NWS NWS Short Term Weather Forecast
Tonight

Tonight: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers after 4am.  Partly cloudy, with a low around 72. North wind around 5 mph becoming southeast in the evening.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Slight Chance
Showers
Friday

Friday: A 10 percent chance of showers before 7am.  Mostly sunny, with a high near 91. South southeast wind around 5 mph becoming west southwest in the morning.
Slight Chance
Showers then
Mostly Sunny
Friday
Night
Friday Night: Partly cloudy, with a low around 74. South wind around 5 mph.
Partly Cloudy

Saturday

Saturday: Partly sunny, with a high near 91. South wind 5 to 10 mph.
Partly Sunny

Saturday
Night
Saturday Night: A 20 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 74. South wind 5 to 10 mph.
Slight Chance
T-storms

Sunday

Sunday: Mostly sunny, with a high near 92. South wind around 10 mph.
Mostly Sunny

Sunday
Night
Sunday Night: A 20 percent chance of showers and thunderstorms before 1am.  Mostly clear, with a low around 73. South southeast wind 5 to 10 mph.
Slight Chance
T-storms

Monday

Monday: Mostly sunny, with a high near 92. South wind around 5 mph.
Mostly Sunny

Lo 72 °F Hi 91 °F Lo 74 °F Hi 91 °F Lo 74 °F Hi 92 °F Lo 73 °F Hi 92 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.