Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
spacer
Updated: @ 27-May-2026 6:15pm - next update at 6:20pm  
Summary / Temperature Wind Precipitation Outlook


Overcast, Dry
Overcast, Dry

80.1°F Warmer 0.3°F than last hour.
Warm
Currently 80.1, Max: 80.6, Min: 67.1 Feels like:
83°F

24-hr
difference
-2°FColder 2°F than yesterday at this time.
TEMP HIGH LOW
Today 80.6°F
4:59pm
67.1°F
2:30am
Yesterday 87.6°F
1:56pm
69.5°F
11:59pm
Record 103°F
1928
47°F
1901
Normal 87°F
68°F
 Wind from WNW WNW
4.4
Gust:
3.3
Light Breeze

60-Min Avg: 2.3 mph
120-Min Avg: 2.3 mph
Max Gust: 15.4 mph 1:03pm
Month: 41.7 mph May 17
Today: 1.20 in
Storm Rain: 1.05 in
Yesterday: 0.01 in
Last
Rain:
5/27/2026
12:21 PM
May: 4.47 in
Last 7 Days: 0.71 in
Rain Season:1 15.39 in
Rain Days: 42 in 2026
9 rain days in May
Thursday

Thursday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 86. Calm wind becoming west around 5 mph.
Slight Chance
T-storms

Barometer Humidity/Dew Point Moon
Current: 29.805 inHg  
1-Hr Trend: Steady
3-Hr Trend: Steady
High: 29.875  |  Low: 29.736
Humidity: 69 %  
Humidex: 94.6°F
Dewpoint: 69.0°F Increased 0.4°F since last hour.
Wetbulb: 72.7°F
Waxing Gibbous
Waxing Gibbous, Moon at 11 days in cycle
90%
Illuminated
Current UV Index Current Solar Energy
   0.5    Low 
High: 5.8 @ 2:33pm
Time to Burn: 224 Mins
Energy: 0 W/m2 (17%)
High: 1027 at  2:34pm
Apparent Temp: 89.1°F
Heat Index Cooling Degree Days Sun
Current: 83.0°F
Today: 83.6°F  4:55pm
Yesterday: 92.6°F
Last Week: 94.4°F
Record: 127.2°F   26-Aug-2023
Today: 2.7
May: 221.9
2026 to Date: 583.7
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
14:07 hrs:min
+ 00:01:04 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:20am
Sunset: 8:27pm
Moonrise: 5:28pm
Moonset: 3:51am
Full Moon: May 31 2026
New Moon: 02:55 UTC June 15 2026
Updated at Midnight
Current: 0.12 in   
7-Days Rain: 0.71 in   
7-Days ET: 1.11 in   
7-Day: -0.4 in 0.4 in water in deficit of what evaporated in last 7 days.
May: -0.25 in 0.25 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.16 kg/m3
Cloud Height: 3294 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:9 ISS:Ok CON:4.6 RCP:98%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
5.2 at 6:15 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 Thursday's Outlook
Tonight

Tonight: A 20 percent chance of showers and thunderstorms before 7pm.  Partly cloudy, with a low around 68. Northwest wind around 5 mph becoming calm  in the evening.
Slight Chance
T-storms then
Partly Cloudy

Lo 68 °F
NWS forecast: A 20 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 68. Northwest wind around 5 mph becoming calm in the evening.
Thursday

Thursday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 86. Calm wind becoming west around 5 mph.
Slight Chance
T-storms

Hi 86 °F
NWS forecast: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming west around 5 mph.
 NWS NWS Short Term Weather Forecast
Thursday

Thursday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 86. Calm wind becoming west around 5 mph.
Slight Chance
T-storms
Thursday
Night
Thursday Night: A slight chance of showers and thunderstorms between 10pm and 1am.  Mostly clear, with a low around 70. West wind around 5 mph becoming calm.  Chance of precipitation is 20%.
Slight Chance
T-storms
Friday

Friday: Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.
Mostly Sunny

Friday
Night
Friday Night: Partly cloudy, with a low around 74. Southeast wind around 5 mph.
Partly Cloudy

Saturday

Saturday: Mostly sunny, with a high near 90. South wind 5 to 10 mph.
Mostly Sunny

Saturday
Night
Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 74. South southeast wind 5 to 10 mph.
Chance
T-storms
Sunday

Sunday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 91. South wind 5 to 10 mph.
Chance
T-storms
Sunday
Night
Sunday Night: Mostly clear, with a low around 73. South southeast wind 5 to 10 mph.
Mostly Clear

Hi 86 °F Lo 70 °F Hi 89 °F Lo 74 °F Hi 90 °F Lo 74 °F Hi 91 °F Lo 73 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.