This is the 17083rd most frequent Russian word.
спустится
"Спустится" means "to descend" or "to go down."
The word 'спустится' here is used in the sense of moving downward from a higher place (downstairs).
Он скоро спустится вниз по лестнице.
He will soon come downstairs.
In this sentence, 'спустится' is used to describe the act of descending from the air to the ground, revealing movement toward a lower position.
Птица спустится на землю для отдыха.
The bird will descend to the ground to rest.
Here, 'спустится' figuratively describes the lowering or decline of the temperature, showing a change to a lower state.