Is it normal for chickens to just stand out in the rain?
I have a couple that LOVE the rain, if it's not down pouring anyways... it brings out the worms.

If it's down pouring where you're at, or if you have a lonely girl just standing there & not "acting chicken" you should probably go check things out. If they seem to be behaving normally (aside from it raining on them)... then probably just let them be & wish them luck of the hunt.
