Air Quality Alert AIR QUALITY ALERT - Plano, Collin County, Texas
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Updated: @ 24-May-2026 2:30pm - next update at 2:35pm  
Summary / Temperature Wind Precipitation Outlook


Mostly sunny, Dry
Mostly sunny, Dry

85.4°F Warmer 1.1°F than last hour.
Warm
Currently 85.4, Max: 86.1, Min: 67.0 Feels like:
90°F

24-hr
difference
3.7°FWarmer 3.7°F than yesterday at this time.
TEMP HIGH LOW
Today 86.1°F
1:49pm
67.0°F
5:22am
Yesterday 83.6°F
5:23pm
64.8°F
4:34am
Record 96°F
1996
54°F
1940
Normal 86°F
67°F
 Wind from ESE ESE
6.0
Gust:
3.3
Light Breeze

60-Min Avg: 4.6 mph
120-Min Avg: 3.5 mph
Max Gust: 18.7 mph 10:08am
Month: 41.7 mph May 17
Today: 0.00 in
Yesterday: 0.68 in
Last
Rain:
5/23/2026
9:05 PM
May: 3.27 in
Last 7 Days: 1.39 in
Rain Season:1 14.18 in
Rain Days: 41 in 2026
7 rain days in May
Tonight

Tonight: A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 10pm.  Partly cloudy, with a low around 68. East northeast wind around 5 mph becoming south southwest in the evening.  Chance of precipitation is 30%.
Chance
T-storms then
Partly Cloudy

Barometer Humidity/Dew Point Moon
Current: 29.975 inHg Falling 0.03 °F/hr
1-Hr Trend: Falling slowly
3-Hr Trend: Falling slowly
High: 30.010  |  Low: 29.947
Humidity: 59 % Decreased 3% since last hour.
Humidex: 100.3°F
Dewpoint: 69.4°F Decreased 0.7°F since last hour.
Wetbulb: 74.7°F
Waxing Gibbous
Waxing Gibbous, Moon at 8 days in cycle
64%
Illuminated
Current UV Index Current Solar Energy
   5.0    Medium 
High: 5.6 @ 12:59pm
Time to Burn: 22 Mins
Energy: 0 W/m2 (67%)
High: 924 at  12:45pm
Apparent Temp: 103.9°F
Heat Index Cooling Degree Days Sun
Current: 89.6°F
Today: 91.7°F  1:49pm
Yesterday: 86.0°F
Last Week: 97.8°F
Record: 127.2°F   26-Aug-2023
Today: 3.5
May: 188.8
2026 to Date: 550.5
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
14:03 hrs:min
+ 00:01:09 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:22am
Sunset: 8:25pm
Moonrise: 2:33pm
Moonset: 2:31am
Full Moon: May 31 2026
New Moon: 02:55 UTC June 15 2026
Updated at Midnight
Current: 0.22 in   
7-Days Rain: 1.39 in   
7-Days ET: 1.09 in   
7-Day: 0.3 in 0.3 in water in excess of what evaporated in last 7 days.
May: -0.87 in 0.87 in water in deficit of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.16 kg/m3
Cloud Height: 4408 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:
11.9 at 2:30 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.  Partly sunny, with a high near 87. Northeast wind 5 to 10 mph.
Chance
T-storms

Hi 87 °F
NWS forecast: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 87. Northeast wind 5 to 10 mph.
Tonight

Tonight: A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 10pm.  Partly cloudy, with a low around 68. East northeast wind around 5 mph becoming south southwest in the evening.  Chance of precipitation is 30%.
Chance
T-storms then
Partly Cloudy

Lo 68 °F
NWS forecast: A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 10pm. Partly cloudy, with a low around 68. East northeast wind around 5 mph becoming south southwest in the evening. Chance of precipitation is 30%.
 NWS NWS Short Term Weather Forecast
Tonight

Tonight: A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 10pm.  Partly cloudy, with a low around 68. East northeast wind around 5 mph becoming south southwest in the evening.  Chance of precipitation is 30%.
Chance
T-storms then
Partly Cloudy
Memorial
Day
Memorial Day: Sunny, with a high near 87. East northeast wind around 5 mph.
Sunny

Monday
Night
Monday Night: Mostly clear, with a low around 68. East southeast wind 5 to 10 mph.
Mostly Clear

Tuesday

Tuesday: Sunny, with a high near 87. South wind around 5 mph.
Sunny

Tuesday
Night
Tuesday Night: Showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 70. Southeast wind around 5 mph.  Chance of precipitation is 60%.
Partly Cloudy
then Showers
Likely
Wednesday

Wednesday: Showers and possibly a thunderstorm.  High near 82. South southeast wind 5 to 10 mph.  Chance of precipitation is 90%.
Showers

Wednesday
Night
Wednesday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 68. Southeast wind around 5 mph.
Chance
T-storms
Thursday

Thursday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly cloudy, with a high near 84. South southeast wind around 5 mph.
Chance
T-storms
Lo 68 °F Hi 87 °F Lo 68 °F Hi 87 °F Lo 70 °F Hi 82 °F Lo 68 °F Hi 84 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.