*As of Aug 11, 5 PM local time.*
Dangerous Heat Conditions Underway
McKinney, TX, is currently under an active Heat Advisory issued by the National Weather Service. This moderate-severity alert highlights the immediate risk posed by extreme temperatures and humidity levels across the area. As of this evening, the air temperature stands at 97F, but the combination of heat and moisture pushes the feels-like temperature to a dangerous 104F.
The atmosphere is holding significant moisture, with a dew point of 70F and relative humidity at 42%. Winds are blowing from the south at 13 mph, with gusts reaching up to 15 mph. The sky remains mostly clear, allowing solar radiation to continue heating the surface without obstruction.
Forecast for Today and Tomorrow
Today in McKinney, conditions will remain sunny with a high near 100F. The National Weather Service indicates heat index values could climb as high as 107 during the peak of the day. South winds are expected to average around 15 mph. The chance of precipitation is minimal at just 1%, and temperatures will drop to a low near 79F tonight.
Overnight, skies will clear further with lows around 79F, though temperatures may rise slightly to around 81F later in the night. Heat index values are forecast to remain elevated at up to 103F. South winds will persist between 10 and 15 mph.
Tomorrow brings another day of sunny skies with a high near 101F. The heat will intensify, with heat index values reaching as high as 105F. Winds will continue from the south at 10 to 15 mph, with gusts potentially hitting 25 mph.
