Friday
Chance of thunderstorms
High:
91°F
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 91. Heat index values as high as 97. Calm wind becoming east southeast around 5 mph in the afternoon.
McKinney, TX Weather - Tomorrow’s Forecast
Friday Night
Partly cloudy
Overnight low:
71°F
Partly cloudy, with a low around 71. South southeast wind around 5 mph.