*As of Jul 21, 9 AM local time.*
Severe Heat Alert Active
An Extreme Heat Warning is currently in effect for McKinney, Texas. This alert, issued by the National Weather Service, indicates severe conditions with expected urgency. The warning is active until 8:00 PM CDT today. Residents should be aware that the heat poses a significant risk to health and safety during this period.
Current Conditions and Forecast
Right now, the air temperature in McKinney is 84F, but the heat index makes it feel like 91F. The relative humidity is at 70%, with a dew point of 73F, creating a muggy atmosphere. Winds are light at 6 mph, with gusts reaching up to 12 mph, under a clear sky.
Today, the sun will be out with no rain expected. The high will reach near 104F, while the low will drop to around 82F. Overnight, temperatures will remain warm, rising to around 84F. The heat index will stay high, reaching values as high as 111F. Winds will shift to the southeast, blowing between 0 to 5 mph.
Tomorrow, conditions will remain sunny with a high near 102F and a low near 79F. There is no chance of precipitation. The heat index will again reach as high as 111F.
Winds will come from the north northeast at 0 to 10 mph. Tomorrow night, skies will be mostly clear, with a low around 79F and temperatures rising to around 81F overnight. The heat index will be as high as 108F, with east northeast winds at 5 to 10 mph.
