Gets the current METAR from any airport on Aviationweather.gov and displays the decoded weather if you're on a device with a screen. Many international airports are included. You can ask for an airport by spelling out the airport identifier literally or phonetically. American airports can be requested by 3 letter identifiers, but all others require the full four letter identifier. American airport can also take a four letter identifier.
Don't feel limited by the sample invocations. Try asking it naturally. or even shorthand requests just stating the airport identifier will work.