As of Jun 28, 4 PM local time.
Dangerous Heat and Humidity Today
McKinney is currently experiencing dangerous heat conditions this Sunday afternoon. The air temperature stands at 95F, but the heat index makes it feel like 103F. This significant discrepancy is driven by a dew point of 72F and relative humidity of 47%, creating a muggy atmosphere that intensifies the perceived heat.
Winds are adding to the discomfort, blowing from the south at 20 mph with gusts reaching 29 mph. The sky remains clear, allowing full solar intensity to contribute to the high temperatures.
Forecast for Today and Tomorrow
The National Weather Service indicates that sunny conditions will persist through the rest of today. The high will reach near 96F, with heat index values climbing as high as 104. South winds will continue at 15 to 20 mph, with gusts potentially hitting 30 mph.
As evening approaches, skies will become mostly clear. Temperatures will drop to a low near 78F, though the heat index will remain elevated, peaking around 102. Winds will maintain their south direction at 15 to 20 mph with similar gust potential.
Tomorrow will bring continued sunny skies and rising temperatures. The high is forecast to near 98F, with heat index values reaching 102. South winds will persist at 15 to 20 mph with gusts up to 30 mph.
Overnight, skies will clear further, and temperatures will fall to a low around 75F, though they may rise slightly to around 78F during the night. The heat index will stay high at 101. Winds will shift slightly, blowing south at 10 to 20 mph with gusts up to 30 mph.
