[ fawr-kast, -kahst, fohr- ]
See synonyms for: forecastforecastingforecaster on

verb (used with object),fore·cast or fore·cast·ed, fore·cast·ing.
  1. to predict (a future condition or occurrence); calculate in advance: to forecast a heavy snowfall; to forecast lower interest rates.

  2. to serve as a prediction of; foreshadow.

  1. to contrive or plan beforehand; prearrange.

verb (used without object),fore·cast or fore·cast·ed, fore·cast·ing.
  1. to conjecture beforehand; make a prediction.

  2. to plan or arrange beforehand.

  1. a prediction, especially as to the weather.

  2. a conjecture as to something in the future.

  1. the act, practice, or faculty of forecasting.

  2. Archaic. foresight in planning.

Origin of forecast

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

synonym study For forecast

1. See predict.

Other words for forecast

Other words from forecast

  • fore·cast·a·ble, adjective
  • forecaster, noun
  • re·fore·cast, verb (used with object), re·fore·cast or re·fore·cast·ed, re·fore·cast·ing.
  • un·fore·cast, adjective
  • un·fore·cast·ed, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use forecast in a sentence

  • But as this was the final RNC protest, activists were not to be deterred by drops of rain and forecasted lightning.

  • In the case of an ordinary criminal, Heldon Foyle might have forecasted what would happen with a fair degree of certainty.

    The Grell Mystery | Frank Froest
  • If I had forecasted this asking I would have asked it myself.

    Seven Short Plays | Lady Gregory
  • Just as he had forecasted, just so had matters shaped themselves.

    The Wolf Cub | Patrick Casey
  • We forecasted the readers of the future, who would prefer the more spiritual, more challenging story texture and dénouement.

    The Hive | Will Levington Comfort
  • "If she is deceiving us in any way he will discover it," the son forecasted, with a feeling of fear at his heart.

British Dictionary definitions for forecast


/ (ˈfɔːˌkɑːst) /

verb-casts, -casting, -cast or -casted
  1. to predict or calculate (weather, events, etc), in advance

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

  1. (tr) to plan in advance

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

  2. a prophecy or prediction

  1. the practice or power of forecasting

Derived forms of forecast

  • forecaster, noun

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