*As of Jul 16, 8 AM local time.*
Current Conditions and Humidity
McKinney, TX is experiencing a notably humid start to the day. As of this morning, the air temperature sits at 75F, though the heat index makes it feel like 77F. The relative humidity is high at 89%, with a dew point of 72F indicating significant moisture in the air.
Winds are light, blowing at 3 mph with gusts reaching up to 11 mph. Despite the moisture, the sky remains mostly clear overhead.
Today and Tonight Forecast
Temperatures are expected to rise significantly throughout the day, with a high near 89F. The chance of precipitation is 31%, with conditions shifting from a slight chance of showers and thunderstorms in the morning to a chance of showers and thunderstorms later.
According to the National Weather Service, there is a slight chance of showers and thunderstorms between 7am and 10am, followed by a chance of showers and thunderstorms between 10am and 1pm. Partly sunny skies will prevail with south winds of 5 to 10 mph.
Tonight, the low will drop to near 74F, though temperatures may rise to around 76F overnight. There remains a chance of showers and thunderstorms before 10pm. Partly cloudy skies are expected with south winds continuing at 5 to 10 mph. The chance of precipitation stays at 30%.
Tomorrow Outlook
Conditions will warm up further tomorrow, with a high near 91F. The sky will be mostly sunny initially, with a slight chance of showers and thunderstorms after 1pm. Heat index values could reach as high as 100, making it feel hotter than the actual air temperature.






