good, optimistic, promising | gloomy, pessimistic | conservative | accurate, correct | detailed | revised | annual | early | long-range, long-term
a long-range weather forecast

short-term
a short-term forecast of the UK economy

official | economic, financial, market, traffic, weather | cash-flow, cost, earnings, growth, profit, revenue, sales

prepare, produce | give, issue, make, provide
The government has issued a pessimistic economic forecast.

revise, update | rely on | be in line with
The interest rate is in line with the forecast.

predict sth, say sth, suggest sth
Some forecasts suggest that the increase in heart disease will continue for some time.

assume sth | be based on sth
forecasts based on a complicated procedure

~ about
Forecasts about the economy are often misleading.

~ for
forecasts for earnings forecasts for different sectors of the industry forecasts for the year

accurately, correctly | originally
higher costs than those originally forecast

be difficult to, be hard to

be widely forecast
a result that was widely forecast