Dr. Drang
Here’s a question, Apple: I understand that forecasts can be tricky, but how do you get the current temperature so wrong?
Mar 10 at 5:57pmWeb
Show threadBrad HeintzMar 10
@drdrang I suspect there are issues with NWS data delivery.
Show threadbubbajetMar 11
@drdrang Apple is likely using an automated weather source that uses aviation weather that will only update hourly, and that’s usually around :55 after the hour. Add a cold front to the mix, and there you go.
Show threadDr. DrangMar 11
@bubbajet Maybe, but it was still wrong—albeit not as wrong—a few hours later. And the temperature had long since stabilized.
Show threadRyan JonesMar 11

@drdrang dark sky was built from an algorithmic approach. Weather has 2 separate data flows: current and future. Current comes from sensors. Future comes from A) extrapolation from sensors B) algos.

So you can see how Dark Sky doesn’t have a network of sensors, this won’t be great at current, and can only do B method.

As you might guess, the way they get Current is by interpolating between forecasts snapshots.

Generally Current is harder than Forecasts for these reasons, plus is falsifiable