Meteorology has spent a century and several satellites chasing accuracy, and still apologises for the odd Tuesday.
Stop guessing. Each evening, issue tomorrow’s forecast at the end of tomorrow — confidently, in the future tense, with a 100% chance of whatever happened. Field notes: 365 forecasts, 365 correct, a record no window (№ 121) can match. Our researchers concede the method never tells you whether to bring a coat, but neither, in practice, did the old one.