Question: How long can you let cooked hot dogs sit out before they become unsafe to eat?
Answer: You can safely leave cooked hot dogs out at room temperature for two hours -- or one hour if the temperature is above 90 degrees Fahrenheit -- says the United States Department of Agriculture.
Cooked hot dogs that have been sitting out for longer than 2 hours (or 1 hour above 90° F) should be discarded. The reason is that bacteria grow rapidly when cooked hot dogs (or wieners/frankfurters) are kept at temperatures between 40° F and 140° F. To prevent foodborne illness, try to refrigerate the cooked hot dogs as soon as you can.
You can safely keep cooked hot dogs in the refrigerator for 3 to 4 days; they’ll also keep well in the freezer for at least 2 months.