Yes. The grounds are open to everyone. You can't go into the actual temple without a recommend.
The grounds around the temple are open, but you will not be able to go inside.
You can also see the Tabernacle, Assembly Hall, and the North or South Visitors center, the South one has a miniature replica of the inside of the temple you can see also. The best pictures are from the East reflection pool I think.
It is not possible to enter but crossing the street you can enter and take pictures of the auditorium. It is beautiful too
Thanks! Your answer is awaiting moderation.