How do I know before when the forecasts/Consensus predictions will release?

Look at economic calendars you can find them with a quick google search. I don't know which are particularly good - i'm also new to this.
 
Find a good economic calendar - there are plenty of those out there - and check it at the beginning of every week. Daily checks are also a good idea, because sometimes they update the scheduled events in case something is postponed to another date.
 
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