How to add weather to google maps in infowindow?

Question

JavaScript

How to display the weather at least for the current location? Assuming that the user is in a big city

var weatherLayer = new google.maps.weather.WeatherLayer({
  temperatureUnits: google.maps.weather.TemperatureUnit.FAHRENHEIT
});
weatherLayer.setMap(map);

Using the function weatherLayer.setMap(map); all points with weather are added to the map .. How to make a point only for the current location?

Thanks