*As of Aug 10, 4 PM local time.*
Dangerous Heat Conditions Underway
McKinney, TX is currently under an active Heat Advisory issued by the National Weather Service. This moderate-severity alert highlights dangerous heat conditions that are expected to persist through the evening. As of this afternoon, the air temperature stands at 97F, but the combination of heat and humidity makes it feel like 102F.
The relative humidity is at 39%, with a dew point of 68F. Winds are blowing from the south-southeast at 11 mph, with gusts reaching up to 20 mph. The sky remains mostly clear, allowing intense solar heating to continue.
Forecast for Today and Tomorrow
Today will be sunny with a high near 99F. The National Weather Service indicates that heat index values could climb as high as 108 during the day. Overnight tonight, skies will clear further, with a low around 78F.
However, temperatures may rise to around 80F later in the night, keeping heat indices as high as 104. Winds will remain from the south at 10 to 15 mph.
Tomorrow brings another sunny day with a high near 100F. Heat index values are forecast to reach as high as 109, making it feel significantly hotter than the actual air temperature. South winds will continue around 10 mph, with gusts up to 20 mph.
Tomorrow night will be mostly clear with a low around 79F, though temperatures may rise to around 81F overnight. Heat indices could remain elevated at 105 during that period.
