I was reminded of this when my phone said “forecasted”. Isn’t “forecast” enough? Is “forecast” only a noun?
I’m less certain about this one. I’m making up sentences with forecast/forecasted and now nothing sounds right.
Aaaaaaaugh! Perfidious Albion!
The traditional past tense of cast is cast, like other originally verbal monosyllables ending in -st (e.g. burst, cost; but not verbs derived from nouns or adjectives, like dust, mist, best), and forecast should follow the same pattern, being just "cast" with a prefix.
@DavidSalo that’s it. We’re storming Merriam Webster’s castle at dawn! :)
@DavidSalo by the way, that’s a fantastically helpful answer. Thank you.
@MookyTroubadour
"Stay tuned for our best guess at the weather" :)