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forecast

American  
[fawr-kast, -kahst, fohr-] / ˈfɔrˌkæst, -ˌkɑst, ˈfoʊr- /

verb (used with object)

forecast, forecasted, forecasting
  1. to predict (a future condition or occurrence); calculate in advance.

    to forecast a heavy snowfall; to forecast lower interest rates.

    Synonyms:
    anticipate, foretell
  2. to serve as a prediction of; foreshadow.

  3. to contrive or plan beforehand; prearrange.

    Synonyms:
    project

verb (used without object)

forecast, forecasted, forecasting
  1. to conjecture beforehand; make a prediction.

    Synonyms:
    estimate, guess
  2. to plan or arrange beforehand.

noun

  1. a prediction, especially as to the weather.

  2. a conjecture as to something in the future.

    Synonyms:
    estimate, guess
  3. the act, practice, or faculty of forecasting.

  4. Archaic. foresight in planning.

    Synonyms:
    prescience, forethought
forecast British  
/ ˈfɔːˌkɑːst /

verb

  1. to predict or calculate (weather, events, etc), in advance

  2. (tr) to serve as an early indication of

  3. (tr) to plan in advance

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a statement of probable future weather conditions calculated from meteorological data

  2. a prophecy or prediction

  3. the practice or power of forecasting

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

See predict.

Other Word Forms

Etymology

Origin of forecast

First recorded in 1400–50; Middle English (verb) “to plan ahead of time”; see origin at fore-, cast ( def. )

Explanation

A forecast is a prediction of what will happen. If the weather forecast calls for sunny skies, consider leaving your umbrella at home. (But, since forecasts aren’t guaranteed to be right, don’t blame us if you get rained on.) While often used in the context of weather, forecast can also be used for other types of predictions such as those related to financial or political outcomes. Note that a forecast is typically a prediction made by experts. So, while a financial analyst might forecast fourth-quarter profits, your prediction about whether your friend will pay back the five dollars he owes you is more of a hunch than a forecast.

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Vocabulary lists containing forecast

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In India, the quick-commerce market is forecast to reach $50 billion by 2030, up from $8 billion last year, according to a report from Deloitte and Google.

From The Wall Street Journal • May 23, 2026

The Home Office has forecast that around 1.6m people could settle between 2026 and 2030 if no changes are made.

From BBC • May 22, 2026

Economists forecast a 3.8% year-over-year increase, three-tenths of a percentage point more than in March.

From Barron's • May 22, 2026

Monday could become the hottest May day on record with temperatures forecast to reach 33C in south-east England.

From BBC • May 22, 2026

They can try to forecast the odds, but they can’t guarantee them.

From "Wonder" by R. J. Palacio

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