foreshadow vs forecast

foreshadow is not a noun while forecast is a noun.

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

As verbs, foreshadow and forecast are synonyms defined as:

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

foreshadow (noun)	forecast (noun)
	a prediction about how something (as the weather) will develop

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