As of Jun 30, 4 AM local time.
Current Conditions and Humidity
It is currently Tuesday overnight in McKinney, and the air remains noticeably moist. The current air temperature sits at 81F, but the feels-like temperature is 85F due to the moisture in the air. Relative humidity is at 74%, with a dew point of 72F, indicating quite humid conditions that make the air feel heavier than the thermometer suggests.
The sky is clear, and winds are blowing from the south at 13 mph, with gusts reaching up to 22 mph.
Today and Tonight Forecast
Today will be sunny with a high near 96F. The heat index values are expected to reach as high as 100, making it feel significantly hotter than the actual air temperature. South winds will range from 10 to 15 mph, with gusts as high as 25 mph. The chance of precipitation is just 1%, so rain is not expected.
As tonight approaches, the sky will remain clear. Temperatures will drop to a low around 77F, but they may rise to around 79F during the overnight hours. South winds will continue at around 10 mph, with gusts as high as 20 mph. The heat index values will remain elevated, reaching up to 99. Residents should expect warm and sticky conditions throughout the night.
Tomorrow Outlook
Tomorrow will also be sunny, with a high near 97F. The heat index values could climb as high as 101, intensifying the heat stress. South winds will be lighter, ranging from 5 to 10 mph, with gusts up to 20 mph.






