Ask-a-Dave's-Gardener: Side door of garage is trashed - need rain-proofing ideas , 2 by Boofish1

Boofish1 wrote:
The wood door from our garage leads to the side yard, and was beat up quite badly by previous owners and their big dogs. The bottom panel has warped and come off completely, and the door frame is pretty rotted. The situation can only be fixed permanently by replacing the entire frame and door, which is a bit pricey at this point. Our rainy/windy season here in Sacramento, CA is starting, and I need a reasonable temporary fix to keep the water out. Any ideas? I\'m not very handy but not afraid of getting dirty!!