It looks a little too yellow but I have a N. alba that is blooming that looks very close.
As the name suggests, it is a white lily.
It has white petals with yellow stamen that get black tips over the 3 day life of the flower.
If it is not alba it might be a progeny.
The color looks like a N. sulphurea but mine does not get the black stamen tips.
This picture was taken today before the downpour of rain came in again.
Tim