Will frogs still come out in 18℃ weather?

Yes.

Frogs appear in spring, summer and fall. Because frogs are cold-blooded animals, their body temperature is not constant. In winter, their body temperature is very low and they will go into hibernation. The weather temperature of 18°C ​​is just the temperature that frogs can withstand, not too low, so they will come out.

Frog is an amphibian belonging to the phylum Chordata, the class Amphibians, the order Anura, and the family Ranaidae. The adults are tailless and their eggs are laid in water. They are fertilized outside the body and hatch into tadpoles. They breathe through gills. Variation, the adult mainly uses the lungs to breathe, and also uses the skin to breathe.