Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 28-May-2026 1:05am - next update at 1:10am  
Summary / Temperature Wind Precipitation Outlook


Night time, Dry, Overcast
Night time, Dry, Overcast

70.0°F Colder 1.8°F than last hour.
Comfortable
Currently 70.0, Max: 71.9, Min: 70.0 Feels like:
67°F

24-hr
difference
1.9°FWarmer 1.9°F than yesterday at this time.
TEMP HIGH LOW
Today 71.9°F
12:00am
70.0°F
12:58am
Yesterday 80.6°F
4:59pm
67.1°F
2:30am
Record 107°F
1927
51°F
1907
Normal 87°F
68°F
 Calm N
0.0
Gust:
0.0
Calm

60-Min Avg: Calm
120-Min Avg: Calm
Max Gust: 0.0 mph 1:03pm
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
Thursday

Thursday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 87. Calm wind becoming west northwest around 5 mph in the afternoon.
Mostly Sunny
then Slight
Chance
T-storms

Barometer Humidity/Dew Point Moon
Current: 29.853 inHg Falling 0.01 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Steady
High: 29.863  |  Low: 29.850
Humidity: 89 % Increased 3% since last hour.
Humidex: 82.5°F
Dewpoint: 66.6°F Decreased 0.8°F since last hour.
Wetbulb: 67.8°F
Waxing Gibbous
Waxing Gibbous, Moon at 11 days in cycle
91%
Illuminated
UV Forecast Current Solar Energy
28-May-2026   Very High   8.6   
29-May-2026   Very High   9.9   
30-May-2026   Very High   10.6   
Energy: 0 W/m2 (0%)
High: 0 at  12:00am
Apparent Temp: 74.7°F
Heat Index Cooling Degree Days Sun
Current: 67.3°F
Today: 71.9°F  12:00am
Yesterday: 83.6°F
Last Week: 94.4°F
Record: 127.2°F   26-Aug-2023
Today: 0.3
May: 226.5
2026 to Date: 588.4
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: 0.02 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: 1.19 kg/m3
Cloud Height: 1532 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:13 ISS:Ok CON:4.6 RCP:99%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
-0.7 at 01:05 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 Thursday's Outlook
Overnight

Overnight: Partly cloudy, with a low around 69. Calm wind.
Partly Cloudy


Lo 69 °F
NWS forecast: Partly cloudy, with a low around 69. Calm wind.
Thursday

Thursday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 87. Calm wind becoming west northwest around 5 mph in the afternoon.
Mostly Sunny
then 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. Calm wind becoming west northwest around 5 mph in the afternoon.
 NWS NWS Short Term Weather Forecast
Thursday

Thursday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 87. Calm wind becoming west northwest around 5 mph in the afternoon.
Mostly Sunny
then Slight
Chance
T-storms
Thursday
Night
Thursday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 72. West wind around 5 mph becoming east southeast in the evening.  Chance of precipitation is 20%.
Slight Chance
T-storms

Friday

Friday: A 10 percent chance of showers and thunderstorms before 7am.  Mostly sunny, with a high near 91. South southeast wind around 5 mph becoming west southwest in the morning.
Slight Chance
T-storms 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: Mostly clear, with a low around 73. South southeast wind 5 to 10 mph.
Mostly Clear

Hi 87 °F Lo 72 °F Hi 91 °F Lo 74 °F Hi 91 °F Lo 74 °F Hi 92 °F Lo 73 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.