Answer: BELOWZERO

AnswerCrossword Clue
BELOWZEROVery cold
BELOWZEROReally, really cold
BELOWZEROFrigid
BELOWZEROWords of coolness
BELOWZEROReally cold
BELOWZEROWeather prediction.
BELOWZEROFrigid temperature range
BELOWZEROLike some harsh weather