Maintaining deck flowers

This is my first attempt to really plant and hang flowers. It is my understanding that flowers should be watered in the morning and evenings, especially after the weather starts getting hot. However after Monday's rain, when I check the potted flowers I've placed on my deck, the pots are still pretty damp when I check for moisture. But the flowers are starting to look pretty sick like they are dying. I can't tell if the flowers are drowning because they've been flooded and beaten down by the rain or what. Do I keep watering them? Do I wait for them to "dry out?" Are they getting sick because I've planted them in pots which do not have a "watering hole" on the bottom and the water can't drain? By comparison, the flowers which I have on my front porch (and are the same type) still look nice and healthly. These flowers did get more shelter from the hard rain though.

I'm sorry that I do not know the name of the flowers. I bought them at Costco and they were in large crates of assorted colors. I bought the red, pink and lilac colors.

 

They may not like direct sun. If their leaves are discoloring (yellowing or even browning)..they are probably getting fried.

Another problem may be that they need more drainage. A possible fix to that is either drilling a hole at the bottom of the pot or taking the plant & dirt out & filling the bottom w/rocks or styrofoam pieces to allow the water to drain out of the soil. But if it rains hard, there's still not a lot of places for the water to go.

 

Thanks Jen...those are great suggestions.