*As of Aug 19, 2 PM local time.*
Severe Heat Warning in Effect
McKinney residents are currently under an Extreme Heat Warning issued by the National Weather Service. This severe alert remains in effect until 8:00 PM CDT on August 20. The current conditions reflect the intensity of this event, with the air temperature sitting at 102F.
Due to the combination of heat and humidity, the feels-like temperature has reached 105F. The sky is clear, and relative humidity stands at 28%, while the dew point is 63F. Winds are blowing from the south southwest at 13 mph, with gusts reaching 18 mph.
These conditions create a dangerous environment where the body struggles to cool itself effectively.
Today and Tonight Outlook
The forecast for the remainder of the day indicates mostly sunny skies. The high temperature will reach near 104F, with heat index values potentially climbing as high as 108F. There is a 0% chance of precipitation, meaning no relief from rain is expected.
As night falls, the sky will remain mostly clear. Temperatures will drop to a low near 81F, though they may rise slightly to around 83F overnight. The heat index will remain high, reaching up to 107F.
Winds will shift to the south at around 10 mph. This persistent warmth means the heat will not dissipate quickly after sunset.
