I'm trying to use Weather.CurrentConditions.temperature but it always returns "0"

To see if it's supported ona device at runtime, use

if(Toybox has :Weather) {}

If you look at the API doc in the current SDK, you can check "Supported Device for Weather

As far as the zero, what do you see in the native weather widget?

Thanks. It shows the recent temperature and everything just fine. During the debug it just says "0"

I was wanting to show the compass information (heading) on the watch face. Is there a reason why not many people use it on their watch faces?

What do you see with this one?

https://apps.garmin.com/en-US/apps/c051f37a-8fad-4907-b124-0112fe010c91

Yours worked. My weather said 36 and your watch face said 35. I fixed my problem, thanks. I was wonder why people don't use things like the temperature and compass readings in their watch faces?

Ok, you may want to do this, as currentConditions can be null too.

    var temp=-99;
    if(Toybox has Weather) {
        var cc=Weather.getCurrentConditions();
        if(cc!=null) {
            if(cc.temperature!=null) {
                temp=cc.temperature;
            } else {
                System.println("null temp");
            }
        } else {
            System.println("no conditions");
        }
    } else {
        System.println("no weather");
    }

Compass data isn't available to a watch face.  For Weather, my preferred source is Weather Underground and not what Garmin provides.  Open Weather Maps isn't bad. Before Garmin added weather to CIQ, people used other sources.  

Thanks.

Yeah I had to do that it was crashing my sideload, but it worked good on the simulator. I'd like to ask you where I can find the information to create a watchface menu that I seen you had for your simple lean g2?

Search this forum for "on Device Settings".  You can also see a basic example in the Analog Sample in the SDK.