The temperatures in Mckinney in May are comfortable with low of 17°C and and high up to 28°C.
You can expect rain for roughly half of the month of May in Mckinney. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Mckinney in May 2025.
If you’re planning to visit Mckinney in the near future, we highly recommend that you review the 14 day weather forecast for Mckinney before you arrive.
Temperatures
28° / 17°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
152
mm
Sun Hours
10.0
Hrs
