We began monitoring the forecasts for today last Friday. It was hard not to miss the fact that Weather Underground BestForecast was out on a limb, five degrees higher than any other weather outlet. Comments to a recent post derided Weather Underground's renegade forecast, pronouncing it to be a "joke." Well, they're certain laughing back at WU's San Francisco headquarters in China Basin after today's high reached exactly what WU forecast last Friday. Well done, gentleman.
Here's how far off (under predicted) the various weather sources were based on today's actual temperature and Friday's forecast high.
Wunderground BestForecast: 95 (exact!)
Weather.com: 89 (-6)
Accuweather.com: 85 (-10)
Weather.gov: 89 (-6)
Wcco: 86 (-9)
Kstp: 85 (-10)
Kmsp: 87 (-8)
Kare: 85 (-10)
Strib: 80 (-15)
It's interesting to note that the best local television forecast was 8 degrees off, yet the national and governmental sources, excluding Accuweather, were within 6 degrees. Not a good showing for the locals.