What do you mean by 'weld'? Do you mean the soldertype like leaded or nonleaded?
Basic leaded solder (60/40) is good for hobbyist through hole soldering.
But you may develop a different preference through experience.
Temperature isn't very critical either.
350 C is good starting point but you can go much lower.
What does matter is how much heat you apply to the work and for how long. Heating components for more than a few seconds can damage them or the PCB' pads/traces.
You want to heat up the work, feed in solder as soon as it melts and then remove the iron once you have enough solder for the joint.
This is something you must learn by practice.
Start with inexpensive kits first. Or just solder some scrap components to a piece of experimenting board first.
I don't think your soldering station is really temperature controlled.
It probably is adjustable in power with a dimmer like circuit.
The controller will put a given amount of power into the iron and it's temperature will depend on how much heat flows out of it.
In air this will be little and the iron will be hotter, once applied to the work it will quickly drop in temperature as heat flows into the joint.
That means you must judge how big the joint is thermally.
A small pad will need little power to get hot quick, a component with heavy leads or a large copper plane will need more power.
This will be a matter of experience.