Forecasts are not very accurate when made far in advance. why is the most recent forecast the most accurate

The most recent forecast is often considered to be the most accurate because it is based on the most up-to-date information and data available. As time passes, new data becomes available, and the forecast models can be updated to incorporate this information, leading to more accurate predictions. Additionally, the accuracy of a forecast can decay over time due to the inherent uncertainty in long-term predictions and the potential for unforeseen events or changes in the underlying conditions. Therefore, the most recent forecast is typically seen as the best estimate of future conditions, as it takes into account the latest available information and incorporates the most recent understanding of the factors influencing the forecasted outcome.