I'm not too terribly concerned with the weather (yet). Our local weathermen er, meteorologists get excited at any chance of non-stop broadcast to warn us about a storm. LOL, they actually pay those folks to drive around with a camera in search of rain. (I actually saw that last week, a live feed of rain not found!)
In the event of an actual impending soaker I'll just cover my small planting with a tarp. I like the fiberglass fence post idea for staking but I went with bamboo. The steel posts at TSC make pretty good tomato stakes. I had a few left over from a project and they served just fine in the garden.