*As of Jul 31, 4 AM local time.*
Active Alert and Current Conditions
A Heat Advisory is currently in effect for McKinney, Texas, indicating moderate severity with expected urgency. The advisory remains active until the evening of July 31. Residents should be aware that dangerous heat levels are imminent.
It is currently Friday overnight in McKinney. The air temperature stands at 82F, but the combination of heat and moisture makes it feel like 87F. Relative humidity is at 70%, with a dew point of 72F, creating a muggy atmosphere.
Winds are blowing from the south at 9 mph, with gusts reaching up to 18 mph. The sky remains clear as we move through this overnight period.
Forecast for Today and Tomorrow
Today will be sunny with a high near 103F. The National Weather Service reports heat index values as high as 112F due to the intense heat and humidity. Southwest winds will average around 10 mph. There is only a 1% chance of precipitation, so skies will remain dry and bright.
Tonight, conditions will shift slightly with partly cloudy skies developing. Temperatures will drop to a low around 81F, though they may rise to around 83F later in the night. Heat index values could reach up to 111F. Winds will decrease, coming from the west southwest at 5 to 10 mph.
Tomorrow brings a slight cooldown but remains hot. Expect mostly sunny skies with a high near 97F. The heat index is forecast to be as high as 98F.
