Not in my opinion. The way that cool weather came through with no immediate rains before it hit, or during, they will be fine. Combine that with me finding a clutch that was probably hatched right before, and had survived through it gives me a positive outlook.
What gets poults with regards to weather, is a heavy rain that ends abruptly with wind and quickly falling temps. Wet woods, temps below 40 degrees, and wind is the bad combo.
Keep in mind these critters have great success in areas much further north that experience cold snaps well into June during their peak hatching.