Mckinney, TX Weather

This Afternoon
Sunny, with a high near 100. Heat index values as high as 108. South wind around 5 mph.

Tonight
Clear. Low around 80, with temperatures rising to around 82 overnight. Heat index values as high as 106. South wind 5 to 10 mph.

Tuesday
Sunny, with a high near 103. Heat index values as high as 110. West wind 0 to 5 mph.

Tuesday Night
Clear. Low around 82, with temperatures rising to around 84 overnight. Heat index values as high as 108. South southeast wind 0 to 5 mph.

Wednesday
Sunny, with a high near 104. North northeast wind 5 to 10 mph.

Wednesday Night
Clear. Low around 80, with temperatures rising to around 82 overnight. East wind 5 to 10 mph.

Thursday
Sunny, with a high near 100. East southeast wind around 10 mph.

Thursday Night
Clear, with a low around 79. East southeast wind around 10 mph.

Friday
Sunny, with a high near 101. South southeast wind around 10 mph.

Friday Night
Mostly clear, with a low around 82.

Saturday
Mostly sunny, with a high near 100.

Saturday Night
Mostly clear, with a low around 82.

Sunday
Sunny, with a high near 102.

Sunday Night
Mostly clear, with a low around 82.