You could try to cover them, it may help some. They will most likely need a good fertilizing once the rains let up.

Howelbama-

I knew about the rain beforehand, so the night before it started raining, I actually mixed some osmocote into the top 3 inches of soil. Do you think they'll need more once the weather dries up?

Since Osmocote is slow release, that should keep you covered for a bit.

Slow release fertilizer will help with rain a lot. I've tried with and without, and in my area we seem get a lot of rain or none at all, and I found it hard to keep up with fertilization without any SRF when we got a lot of rain. I tend to use a combination of both SRF and fertigation now, and that seems to work best for me. I use a lower dose of SRF, and then fertigate at low doses which I adjust for plant needs.

As far as the soil, the amount of drainage really does matter. From my experiments, 5:1:1 drains just fine in rain, and actually helps it from becoming hydrophobic. Alternatively though, I found peat based soils do get saturated in rain, and should be moved or covered, the reason I don't use them any more.

You'll find at least 2 good tips that will help you deal with excess water retention. Read carefully about the wicks and tilting containers.

Al

Here is a link that might be useful: Tips