I have never left the awning out at night or when we go out and if it is just a small sprinkle or light shower I always lower one side so that water does not puddle in the middle and bend the torque tube, and if it is the manual style, leave the cord wrapped on one arm, this way a Good Sam neighbor can retract your awning in case it is needed, I have retracted many and closed windows when wind and rain popped up and the folks were away, some of the ones that did not have the pull straps we tried to save but the wind got them before we could, the awnings ended wrapped around roof of the RV all twisted and some damaged the A/C's.
navegator