English UsageComparison guide
Forecast vs. Forecasted
Both “forecast” and “forecasted” are documented as past-tense and past-participle forms of the verb “forecast.” Neither form should be treated as universally incorrect.
Both “forecast” and “forecasted” are standard past forms; use the form that matches your style and sentence.
Key details
Confusion Familyalternative past forms
Rule Familyverb-forms
TermsForecast, Forecasted
Further guidance
Core difference
Cambridge records both “forecast” and “forecasted” as past-tense and past-participle forms of the verb “forecast.”
Usage Boundary
Do not label “forecasted” incorrect simply because “forecast” is also used as the past form. Follow established usage and house style consistently.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- Forecast — Cambridge Dictionary (opens in a new tab)Cambridge Dictionary · Dictionary evidence that both “forecast” and “forecasted” are documented past-tense and participle forms of forecast.