As of Jul 4, 8 AM local time.
Current Conditions and Humidity
McKinney is experiencing a notably humid start to the day. The current air temperature sits at 81F, but the relative humidity of 79% and a dew point of 73F make it feel like 85F. Winds are blowing from the south southwest at 8 mph, with gusts reaching up to 19 mph.
The sky remains clear at this moment, but the moisture in the air is significant.
Today and Tonight Forecast
Temperatures will climb significantly throughout the day, with a high near 97F expected. The National Weather Service indicates that heat index values could reach as high as 104F. While the morning will be sunny, there is a slight chance of showers and thunderstorms developing after 4pm. Winds will shift to a south southwest direction at around 5 mph.
As evening approaches, the chance for precipitation continues with a slight chance of showers and thunderstorms before 7pm. The sky will become mostly clear, and temperatures will drop to a low around 77F. However, the heat will linger, with temperatures rising to around 79F overnight. Heat index values may still reach 102F. Winds will turn southeast at 5 to 10 mph.
Tomorrow Outlook
The heat will persist into tomorrow, with a high near 97F again. The sky will be mostly sunny, but there is a chance of showers and thunderstorms after 4pm. The chance of precipitation is listed at 30%. Heat index values are expected to peak around 101F. Winds will remain light at around 5 mph from the south southwest.
