to predict (a future condition or occurrence); calculate in advance: to forecast a heavy snowfall; to forecast lower interest rates.
to serve as a prediction of; foreshadow.
to contrive or plan beforehand; prearrange.
to conjecture beforehand; make a prediction.
to plan or arrange beforehand.
a prediction, especially as to the weather.
a conjecture as to something in the future.
the act, practice, or faculty of forecasting.
Archaic. foresight in planning.
- 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use forecast in a sentence
Indeed, the failure of election forecasts in 2020 may seem like another “Dewey Defeats Truman” moment.
This is true for both the probabilistic forecasts that we build and the reporting that we do.The Polls Weren’t Great. But That’s Pretty Normal. | Nate Silver (email@example.com) | November 11, 2020 | FiveThirtyEight
Earlier this week, the weather forecast for the Masters did not look promising, with rain all day this Thursday followed by pesky showers throughout the weekend.Masters forecast looking wet early, which could pose problems later in the weekend | Matt Bonesteel | November 11, 2020 | Washington Post
Heavy rain and isolated flooding forecast for Washington region Wednesday into ThursdaySee Matt Rogers’s forecast through the weekend.PM Update: Record highs in the upper 70s today are replaced by rainy weather on Wednesday | Ian Livingston | November 10, 2020 | Washington Post
It’s actually the second straight year of a two-tee Sunday start, as it also happened in 2019 — for the first time in history — because of thunderstorms in the forecast.The Masters in 2020 will be unlike any other. Here’s what you need to know. | Matt Bonesteel | November 9, 2020 | Washington Post
But as this was the final RNC protest, activists were not to be deterred by drops of rain and forecasted lightning.Protesters Say They Were ‘Successful’ in Tampa Despite Low Turnout | Lynn Waddell | August 31, 2012 | THE DAILY BEAST
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.Victor Ollnee's Discipline | Hamlin Garland
British Dictionary definitions for forecast
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
- 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