*As of Aug 6, 8 AM local time.*
Heat is the main story
McKinney is starting this morning clear, humid and already uncomfortable. The air temperature is 82F, but it feels like 87F. Relative humidity is 70%, and the dew point is 72F, which is high enough to make the heat feel heavier. Wind is at 7 mph, with gusts up to 18 mph.
Today will be sunny, with a high near 100F and a low near 79F. The chance of precipitation is 1%, so rain is not expected to be a factor today. Heat index values may climb as high as 103, and a south wind around 10 mph is expected.
Tonight and tomorrow
Tonight stays clear and warm, with a low around 79. Heat index values may still reach as high as 104. South wind is expected at 5 to 10 mph.
Tomorrow keeps the same very hot pattern, with a high near 100F and a low near 78F. Sunshine is expected, followed by a slight chance of showers and thunderstorms. The chance of precipitation is 17%. Heat index values may rise as high as 105, with south wind at 5 to 10 mph.
