As of Jul 4, 4 AM local time.
Current Conditions and Humidity
It is currently Saturday overnight in McKinney, TX, and the air remains thick with moisture. The current air temperature sits at 81F, but the heat index makes it feel like 85F. Relative humidity is holding steady at 74%, with a dew point of 72F indicating quite humid conditions. The sky is clear, and winds are light at 7 mph with gusts reaching 11 mph.
Today and Tonight Forecast
Temperatures will climb significantly as the sun rises. Today, expect a high near 97F with a low near 78F. The sky will be sunny initially, but there is a slight chance of showers and thunderstorms developing later in the day.
The National Weather Service notes a slight chance of showers and thunderstorms after 4pm. Heat index values are expected to reach as high as 104. Winds will be from the south southwest around 5 mph.
As evening approaches, conditions will shift. Tonight, skies will become partly cloudy with a low around 77 to 78 degrees. Temperatures may rise slightly to around 79 or 80 overnight. There is a slight chance of showers and thunderstorms before 7pm. Heat index values could hit 102. Winds will shift to the southeast, blowing between 5 to 10 mph.
Tomorrow Outlook
The pattern continues into tomorrow with similar heat. Expect a high near 97F and a low near 76F. The sky will be mostly sunny, but the chance for precipitation increases to 26% overall, with a specific chance of showers and thunderstorms after 4pm. Heat index values will reach up to 101. Winds will remain light from the south southwest around 5 mph.
