*As of Jul 20, 4 PM local time.*
Dangerous Heat Conditions Underway
A Heat Advisory is currently in effect for McKinney, Texas, signaling dangerous heat conditions for the area. The National Weather Service has issued this moderate severity alert due to high temperatures and humidity levels that will make it feel significantly hotter than the actual air temperature.
Right now, the air temperature stands at 95F, but the heat index makes it feel like 103F. The relative humidity is at 47%, with a dew point of 72F, indicating quite humid conditions that contribute to the oppressive heat. Winds are blowing from the south at 9 mph, with gusts reaching up to 10 mph. The sky remains clear, offering no relief from the sun.
Forecast for Today and Tomorrow
Today, McKinney will experience sunny skies with a high near 100F. The chance of precipitation is minimal at 8%. Overnight, conditions will remain clear with a low near 80F. However, temperatures are expected to rise to around 82F during the night, keeping the heat index values as high as 107F. South winds will continue at 5 to 10 mph.
Tomorrow, the heat will intensify further. Sunny skies will persist with a high near 103F. The heat index is forecast to reach as high as 109F, making it feel extremely hot.
The chance of rain drops to just 1%. Winds will shift to the southwest, ranging from 0 to 5 mph. Overnight into the early hours of the following day, skies will clear again with a low around 82F, though temperatures may rise to around 84F overnight, with heat index values up to 108F.
