The word nightly can be used as an adjective or an adverb. It means occurring each night. Examples: his nightly walk, the nightly news (adjective) he visits her nightly (adverb)
Yes, nightly is an adverb.
Tease Nightly is 5' 2".
The Nightly Disease was created in 2000.
Nightly Trembling was created in 1999.
Daily Nightly was created in 1967.
The duration of Nightly bulletin is 1800.0 seconds.
BET Nightly News was created in 2001.
Fort Nightly was created on 2007-05-22.
Appearing Nightly was created on 2008-09-09.
Nightly bulletin ended on 2009-02-06.
Nightly bulletin was created on 1991-02-01.