forecast

1 of 2

verb

forecast also forecasted; forecasting
Synonyms of forecast

transitive verb

1
a
: to calculate or predict (some future event or condition) usually as a result of study and analysis of available pertinent data
The company is forecasting reduced profits.
especially : to predict (weather conditions) on the basis of correlated meteorological (see meteorology sense 1) observations
They're forecasting rain for this weekend.
b
: to indicate as likely to occur
Optimists are forecasting an immediate upswing in business.
2
: to serve as a forecast of : presage
Such events may forecast peace.

intransitive verb

: to calculate the future
if it turns out as I forecasted
forecaster noun
1
: a prophecy, estimate, or prediction of a future happening or condition
2
archaic : foresight of consequences and provision against them : forethought
Choose the Right Synonym for forecast

foretell, predict, forecast, prophesy, prognosticate mean to tell beforehand.

foretell applies to the telling of the coming of a future event by any procedure or any source of information.

seers foretold the calamity

predict commonly implies inference from facts or accepted laws of nature.

astronomers predicted an eclipse

forecast adds the implication of anticipating eventualities and differs from predict in being usually concerned with probabilities rather than certainties.

forecast snow

prophesy connotes inspired or mystic knowledge of the future especially as the fulfilling of divine threats or promises.

prophesying a new messiah

prognosticate is used less often than the other words; it may suggest learned or skilled interpretation, but more often it is simply a colorful substitute for predict or prophesy.

prognosticating the future

Examples of forecast in a Sentence

Verb They're forecasting rain for this weekend. The company is forecasting reduced profits. Experts forecast that the economy will slow in the coming months. Noun want to catch the weather forecast so I'll know what kind of clothes to pack for the trip tomorrow
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Verb
The incentives — divided over two years — would be used to guarantee that the revenue drawn by the airline from the trans-Atlantic route matches what is forecast, particularly in the months after the route first launches and gets established. Kenneth R. Gosselin, Hartford Courant, 3 Aug. 2026 OpenAI’s Sam Altman and Dario Amodei of Anthropic both forecast it—and have since scaled back predictions. Diane Brady, Fortune, 3 Aug. 2026
Noun
But authorities warned the broader Athens region of Attica remained at a high risk for wildfires due to a forecast increase in temperatures. ABC News, 3 Aug. 2026 Skywatchers should seek dark locations and check real-time forecasts via NOAA or aurora apps. Jamie Carter, Forbes.com, 2 Aug. 2026 See All Example Sentences for forecast

Word History

First Known Use

Verb

15th century, in the meaning defined at transitive sense 1a

Noun

1527, in the meaning defined at sense 2

Time Traveler
The first known use of forecast was in the 15th century

Browse Nearby Words

Cite this Entry

“Forecast.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/forecast. Accessed 5 Aug. 2026.

Kids Definition

forecast

1 of 2 verb
forecast also forecasted; forecasting
: to calculate or predict (a future event or state) usually by study and examination of data
forecast the weather
forecaster noun

forecast

2 of 2 noun
: an estimate or prediction of a future happening or condition
weather forecasts

More from Merriam-Webster on forecast

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