forecast vs presage

forecast and presage both are nouns.

Word	Noun	Adjective	Verb	Adverb
forecast	Yes	No	Yes	No
presage	Yes	No	Yes	No

As verbs, forecast and presage are synonyms defined as:

Other synonyms of forecast include augur, auspicate, betoken, bode, foreshadow, foretell, omen, portend, predict, prefigure, prognosticate.

forecast (noun)	presage (noun)
a prediction about how something (as the weather) will develop	a sign of something about to happen
	a foreboding about what is about to happen

forecast (verb)	presage (verb)
judge to be probable	indicate, as with a sign or an omen
predict in advance
indicate, as with a sign or an omen