*As of Sep 15, 2 PM local time.*
Dangerous Heat Conditions Underway
McKinney, Texas, is currently under an active Heat Advisory issued by the National Weather Service. The advisory carries a moderate severity rating with expected urgency, signaling that dangerous heat conditions are imminent and will persist through the evening of September 16.
As of this Tuesday afternoon, the air temperature stands at 99F, but the combination of heat and humidity pushes the feels-like temperature to a sweltering 104F. The relative humidity is at 37%, with a dew point of 68F. Winds are blowing from the south at 10 mph, with gusts reaching up to 14 mph under clear skies.
Forecast for Today and Tomorrow
Today remains sunny with a high near 99F. The National Weather Service indicates heat index values could climb as high as 106 during peak hours. South winds will hover around 10 mph, with gusts potentially reaching 20 mph. There is no chance of precipitation today.
Tonight, skies will clear out, allowing temperatures to drop to a low near 79F. However, the heat will linger, with temperatures rising to around 81F overnight and heat index values as high as 103. Winds will shift slightly to south-southeast at 5 to 10 mph, with gusts up to 20 mph.
Tomorrow continues the pattern of intense heat. Expect sunny skies and a high near 99F again. Heat index values are forecast to reach 106 once more. South winds will be lighter, ranging from 5 to 10 mph. The chance of precipitation is minimal at just 3%. Tomorrow night will be mostly clear with a low around 78F and heat index values up to 102.
