What's the matter with the weather showing more than 60 degrees on iPhone 6?

This is because it shows degrees Fahrenheit. By switching the display unit, the centigrade scale can be displayed normally.

Step 1: Click the "Weather" icon on the desktop, as shown below.

Step 2: In the weather interface, click the list icon in the lower right corner, as shown in the following figure.

Step 3: Find the Fahrenheit scale and the icon of centigrade scale on the interface, and click. After switching to the centigrade scale, the centigrade temperature can be displayed normally, as shown in the following figure.