Shortly after, Rousey's opponent Amanda Nunes also hit the scale at 135 pounds.
Women's bantamweight champion Nunes seemed to be in good spirits as she weighed in for the first time as the defending champion after defeating Miesha Tate to win the title back at UFC 200.
Hendricks came in at 173.5 pounds - two and a half pounds over the welterweight limit at 171 pounds for a non-title fight.
UFC 207: NUNES VS ROUSEY WEIGH-IN RESULTS Amanda Nunes (135) vs. Ronda Rousey (135) Dominick Cruz (135) vs. Cody Garbrandt (135) TJ Dillashaw (136) vs. John Lineker (135.25) Dong Hyun Kim (171) vs. Tarec Saffiedine (171) Louis Smolka (125.5) vs. Ray Borg (129.5) Johny Hendricks (173.5) vs. Neil Magny (171) Antonio Carlos Junior (186) vs. Marvin Vettori (186) Mike Pyle (170) vs. Alex Garcia (170.5) Brandon Thatch (170) vs. Niko Price (170) Tim Means (170) vs. Alex Oliveira (170.5)