*As of Aug 5, 8 AM local time.*
Very hot, humid start
McKinney is heading into very hot weather, with today’s high near 102F and the air already feeling warmer than the thermometer shows. Current conditions are clear, with an air temperature of 82F and a feels-like temperature of 87F.
Humidity is a big part of the story. Relative humidity is 70%, and the dew point is 72F, making the air feel quite muggy. Wind is currently 7 mph, with gusts to 13 mph.
Today, tonight and tomorrow
Today stays sunny, with a high near 102F and a low near 80F. The chance of precipitation is 3%. Heat index values may reach as high as 105. South wind is expected at 5 to 10 mph.
Tonight remains mostly clear, with a low around 80 and temperatures rising to around 82 overnight. Heat index values may be as high as 106. South southeast wind is expected at 5 to 10 mph.
Tomorrow is also sunny, with a high near 100 and a low near 78. The chance of precipitation is 3%. Temperatures may fall to around 98 in the afternoon, and heat index values may reach as high as 105. South wind is expected at 5 to 10 mph.






