As of Jul 4, 8 PM local time.
Current Conditions and Heat
McKinney is experiencing very hot conditions this evening. The air temperature is currently 93F, but the heat index makes it feel like 99F. Humidity levels are quite high, with a dew point of 70F and relative humidity at 47%. Winds are blowing from the south southeast at 7 mph, with gusts reaching up to 14 mph. The sky remains clear as the day winds down.
Forecast for Today and Tonight
Today, highs will reach near 97F under partly cloudy skies. The chance of precipitation is minimal at 3%. As evening approaches, conditions will remain partly cloudy with a low near 79F.
Overnight, temperatures may rise slightly to around 81F. The heat index is expected to stay high, with values as high as 101. Winds will shift to the south southeast, maintaining speeds between 5 and 10 mph.
Tomorrow's Outlook and Storm Potential
Temperatures will continue to climb tomorrow, with a high near 99F. The sky will be mostly sunny initially, but the chance of precipitation increases to 26%. According to the National Weather Service, there is a chance of showers and thunderstorms after 4pm.
The heat index could reach as high as 105. Winds will be from the south southwest around 5 mph. The chance of precipitation is listed at 30%, with new rainfall amounts less than a tenth of an inch possible.
