*As of Jul 20, 8 AM local time.*
Current Conditions and Alert Status
A Heat Advisory is currently in effect for McKinney, Texas, signaling moderate severity and expected urgency. The National Weather Service has issued this advisory to warn residents of dangerously hot conditions. As of this morning, the air temperature stands at 81F, but the combination of heat and moisture makes it feel like 85F.
The relative humidity is at 79%, with a dew point of 73F, indicating quite humid air. Winds are light at 5 mph with gusts reaching 12 mph, and the sky remains clear.
Today and Tonight Forecast
Today will be sunny with a high near 100F. The heat index values are expected to reach as high as 108. The National Weather Service forecasts southwest winds around 5 mph.
There is only a 1% chance of precipitation. As the day transitions to tonight, conditions will become mostly clear. Temperatures will drop to a low near 79F, though they may rise to around 81F overnight.
The heat index will remain elevated, with values as high as 106. South southwest winds will persist at around 5 mph.
Tomorrow Outlook
Tomorrow will also be sunny, with temperatures climbing to a high near 103F. The heat index is forecast to reach as high as 108. Winds will be light, coming from the west southwest at 0 to 5 mph.
