Tuesday
Clouds clearing
High:
91°F
Mostly cloudy, then gradually becoming sunny, with a high near 91. Heat index values as high as 97. South wind around 10 mph, with gusts as high as 20 mph.
McKinney, TX Weather - Tomorrow’s Forecast
Tuesday Night
Mostly clear
Overnight low:
77°F
Mostly clear, with a low around 77. South southeast wind around 10 mph.