A possible blight on evergreens
Some of this is probably winter damage from the severe cold and temperature swings we experienced this past winter. Many plants are displaying damage this spring.
Prune out dead tips on the arbor vitae.
Prune out dead tips on the juniper. They may also have juniper twig blights, and pruning out infected tips reduces spread of the disease. Click here for more: https://extension.umd.edu/hgic/juniper-twig-blights-phomopsis-and-kabatina-shrubs