Overnight low danger zone.
We have a cold snap hitting the area for the next few days and I still have 2/3 of my tomatoes on the plants waiting to ripen. I expect they will be ready in 10-14 days if they survive this cold snap. Overnight lows are projected to be 41-44F with lots of rain. The temps are expected to go back up to relatively warmish fall temps after that with lows in the upper 50's.
Everything I can find in the forums about lows refers to young, newly planted tomatoes not fully mature plants. At approximately what temps should I worry about my mature plants being in danger from overnight lows?