It looks to be a sunburn or even over-fertilization. How has the sun been in your area and have you been using fertilizers? if so, how much?

Haven't used any fertilizer. It's a raised bed with premium garden soil from the local nursery. Weather has been low 40's - mid 70's the last week when this happened. If it helps, these were Bonnie plants that I planted and they looked healthy for about a week before this happened. Thanks.

May just be transplant shock and the roots adjusting to the new soil but im not quite sure. You might want to check the undersides of the healthier bottom leaves for signs of pests.

This link may be helpful: http://homeguides.sfgate.com/causes-leaf-curl-green-peppers-75172.html

A deep watering will not hurt anything, and will probably help more than anything else. Also some can do things like that when weather changes from one extreme to the other, and back again quickly.

If that were in my garden. I would:

1. Water it well, this helps to make sure there are not air pockets in the soil as well.

2. Check for leaf borne pests. If they are there then identify what the pest is before you treat the plant with any pesticides. (Chemical or Organic.)

3. Keep an eye on the stem. It is possible the cold air teamed up with wind burned the leaves. If so they will fall off anyway. Look for new ones coming out of the stem. If the stem turns light brown the it is dead.

4. Hope it is not damage from herbacide.

On a small side note. The ground temperature may still be a little cooler than most peppers do well in. If so then the plant will look sickly for a while till the temps of the soil catch up. It should then start looking better. My over wintered jalapeno plant looked awful for 3 weeks after I planted it out. It is just now starting to really show signs of new life.

Thanks all for the feedback. After some advice from a Bonnie plant expert I'm certain it was the cold weather. Must have gotten lower at night than I thought. I pruned off the affected areas and they are doing great now. about half my plants are pruned using this technique. http://youtu.be/6ckg4Vh9ga8 Hopefully, I have as good as results as that guy maybe I'll do that from now on.

Change in temps. That makes sense.

I have a white fatalii about that big that does the same thing. I thought it was bugs, overwatering, no nutrients, nutrient burn, and it seems that it was none of that. It does get into the 50s at night so this is one of the few that seem to not like it too cold.