*As of Jul 21, 4 AM local time.*
Current Conditions and Alert Status
An Extreme Heat Warning is currently active for McKinney, Texas, signaling severe and expected heat conditions. The National Weather Service has issued this alert to highlight the dangerous levels of heat expected in the area. As of this Tuesday overnight, the air temperature stands at 77F, with a feels-like temperature of 78F.
The atmosphere is quite humid, with relative humidity at 78% and a dew point of 70F. Winds are light, blowing at 3 mph with gusts reaching up to 12 mph, under clear skies.
Forecast for Today and Tomorrow
Today, McKinney will experience sunny skies with a high near 104F. The heat index values are expected to reach as high as 113F, making it feel significantly hotter than the actual air temperature. Winds will be from the west northwest at 0 to 5 mph. The low for today is near 80F.
Tonight, conditions will remain mostly clear. Temperatures will drop to a low around 82F, though they may rise to around 84F later in the overnight period. Heat index values will remain elevated, peaking at 111F. Winds will shift to the southeast, blowing at 0 to 5 mph.
Tomorrow, the sun will continue to shine with a high near 102F. The heat index will again reach up to 111F. Winds will come from the north northeast at 0 to 10 mph.
