*As of Jul 7, 12 PM local time.*
Current Conditions and Heat Index
McKinney is experiencing a notably humid afternoon with clear skies overhead. The air temperature stands at 91F, feeling like 91F, while the relative humidity sits at 49%. The dew point is 71F, indicating significant moisture in the air. Winds are light, blowing at 3 mph with gusts reaching 5 mph.
Despite the clear sky, the heat index is a critical factor for outdoor activities. The National Weather Service indicates heat index values as high as 101F today. This combination of high temperature and humidity creates conditions where heat-related illnesses can occur more easily. Residents are advised to stay hydrated and limit prolonged exertion during the hottest parts of the day.
Forecast for Today and Tonight
Today, the high will reach near 97F. There is a 25% chance of showers and thunderstorms developing. The official forecast suggests a chance of showers and thunderstorms, with new rainfall amounts less than a tenth of an inch possible. South southwest winds will be around 5 mph.
Tonight, the low will drop to near 74F, though temperatures may rise to around 76F overnight. A chance of showers and thunderstorms is expected before 10pm, followed by mostly clear skies. The heat index will remain elevated, with values as high as 99F. Southeast winds will persist at around 5 mph. The chance of precipitation remains at 30%.
