Are you using Nikon body ? If you are then the following instruction will allow you
to meter different from your focus point.
On your body, there should be a AF-ON button. In your menu, set it to lock exposure only.
What you do switch to spot or weighted metering. Point the focus spot at the sky area, hold on to the AF-ON button, you will observe a AE-L wording lit up in your viewfinder display. Then shift your focus point to your subject, half depress the shutter release button to engage the focusing mechanism and fully depress when you are ready to capture.
That will allow you to expose on different parts of the scene and perform a recompose and capture procedure.
Another more manual approach is point your focus point to the point u want to meter, using spot or weighted metering. Observe the shutter speed and aperture used, switch your mode to manual and use these values. Then point at your subject, half depress shutter release button to focus and shoot.
Both will give you the same results.
Metering is just a action to tell you what shutter speed and aperture to use and any moment to properly expose the scene.