I was on my way to the fire station to assume my shift.About 6.30 am.I was driving west on highway 370 west when i observed two disc flying south. cross street would be highway 50 south of millard ne. two disc were in formation one above the other and slightly back. they flew into clouds and i lost site. it was clear to me they were not any aircraft i had ever seen. i am licensed airplane and helicopter pilot.