Previous forecasts for Sunday, July 20

The highlighted forecast on the far left is the current forecast for Sunday, July 20.

The forecasts that follow to the right are also forecasts for Sunday, July 20. These forecasts were made on previous days. The forecast immediately following the current forecast was yesterday's forecast for Sunday, July 20, and so on.

By looking at how much change there is in the forecast over time, you can tell how stable a forecast is. This can sometimes give you an indication of how accurate the forecast may end up being.