As of Jul 4, 4 PM local time.
Dangerous Heat and Humidity
McKinney is currently under the influence of dangerous heat. The air temperature stands at 97F, but the heat index makes it feel like 105F. This intense heat is compounded by significant humidity, with a dew point of 72F and relative humidity at 44%. The sky remains clear, and winds are blowing from the south southeast at 10 mph with gusts to 10 mph.
Forecast for Today and Tomorrow
Today, temperatures will peak near 98F. There is a slight chance of showers and thunderstorms after 4pm. The heat index is expected to reach as high as 105F.
Overnight, conditions will become partly cloudy with a low near 79F. Temperatures may rise slightly to around 81F during the night. The heat index will remain high, reaching up to 103F.
Winds will continue from the south southeast at 5 to 10 mph. The chance of precipitation is 13%.
Tomorrow, the heat will persist with a high near 99F. The sky will be mostly sunny initially, but there is a chance of showers and thunderstorms after 4pm. The heat index could climb to 105F.
Winds will shift to the south southwest at around 5 mph. The chance of precipitation is 26%, with new rainfall amounts less than a tenth of an inch possible. Overnight, there is a chance of showers and thunderstorms before 7pm, followed by a slight chance between 7pm and 1am.
