Absolutely. Hit /wa to bring up the WeakAuras config system, and do the following for each group listed that you want to remain visible out of combat;
1> Click the group in the list on the left
2> Click the "Load" tab on the right
3> Click twice on the "In Combat" flag at the top, which currently has a checkmark; the first click will cycle it to only show out of combat, the second will remove the checkmark so "combat" isn't a flag that affects visibility.
I have everything grouped to make these kinds of changes as easy as possible; you can toggle Load factors on each aura as well, but changing it on the group as a whole affects all the auras in that group.