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

verb (used with object), fore·cast or fore·cast·ed, fore·cast·ing.

verb (used without object), fore·cast or fore·cast·ed, fore·cast·ing.

to conjecture beforehand; make a prediction.
to plan or arrange beforehand.


Origin of forecast

1350–1400; Middle English (noun) plan. See fore-, cast

Related forms

Synonym study

1. See predict. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for forecast

British Dictionary definitions for forecast


/ (ˈfɔːˌkɑːst) /

verb -casts, -casting, -cast or -casted

to predict or calculate (weather, events, etc), in advance
(tr) to serve as an early indication of
(tr) to plan in advance


a statement of probable future weather conditions calculated from meteorological data
a prophecy or prediction
the practice or power of forecasting

Derived Forms

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