forecaster vs predictor

forecaster and predictor both are nouns.

Word	Noun	Adjective	Verb	Adverb
forecaster	Yes	No	No	No
predictor	Yes	No	No	No

As nouns, forecaster and predictor are synonyms defined as:

forecaster and predictor: someone who makes predictions of the future (usually on the basis of special knowledge)

Other synonyms of forecaster include prognosticator, soothsayer.

forecaster (noun)	predictor (noun)
someone who makes predictions of the future (usually on the basis of special knowledge)	a computer for controlling antiaircraft fire that computes the position of an aircraft at the instant of a shell's arrival
	information that supports a probabilistic estimate of future events
	someone who makes predictions of the future (usually on the basis of special knowledge)