“While meteorological measurements improved over time, the massive step-change in predictions came with the use of computerized numerical modeling. This didn’t start until a century later, in the 1960s.

Forecasts have improved a lot since then. We can see this across a range of measurements, and different national meteorological organizations.

The Met Office says its four-day forecasts are now as accurate as its one-day forecasts were 30 years ago.”

From Our World in Data.