Definition of "forecast"

forecast

/ˈfɔːkɑːst/

verb
third-person singular simple present forecasts, present participle forecasting, simple past and past participle forecast or forecasted
1. To estimate how something will be in the future.
  Quotations
  Within six months, the total number of passengers forecast to use the line in the entire first year (650,000) had already been passed. For the first 12 months, the figure was in excess of 1.2 million. And overall, it has grown year-on-year, reaching over two million in 2018-19.
  2020 May 6, Graeme Pickering, “Borders Railway: time for the next step”, in Rail, page 52
2. To foreshadow; to suggest something in advance.
3. (obsolete) To contrive or plan beforehand.
  Quotations
  And, if it happen as I did forecaſt, / The dainteſt diſhes ſhall be ſerv'd up laſt.
  1626 (date written), John Milton, “At a Vacation Exercise in the Colledge, […]”, in Poems, &c. upon Several Occasions, London: […] Tho[mas] Dring […], published 1673, page 64
noun
plural forecasts
1. An estimation of a future condition.
  1. A prediction of the weather.
2. (gambling) exacta