1A forecast or prediction announced in advance — most often used for weather forecasts, but also for economic or other forecasts.
天気予報では明日は雨だと言っていた。
The weather forecast said it would rain tomorrow.
台風の進路を予報するのは難しい。
It's difficult to forecast the path of a typhoon.
予報が外れて、洗濯物が濡れてしまった。
The forecast was wrong, and my laundry got wet.
来年の景気を予報するのは専門家でも簡単ではない。
Even experts find it hard to forecast next year's economy.