Clarence "Sparr" Risher

Pretty much every weather forecast site got today wrong, by around a hefty 10°F.

My question, then, is why leave that worthless information posted?  At some point around noon today it was 65° out, already well past the forecast high of 61°.  At that point, what possible need (other than poking fun at meteorologists) could I have for the existing forecast?  Why does [apparently] no one provide an updated forecast during the day, based on information from the earlier parts of the day?  They already produce a new forecast for Thursday on Wednesday night, and on Tuesday night, and a number of other days stretching back at least two weeks, with better certainty based on more data each time.  Why can that process not be extended another 6 to 12 hours?  With no advanced algorithms or additional data, I can tell you with better than 95% certainty that if it is 61° at 11AM then the high for today is going to be at least 65°.

At least WeatherBug has a "So Far Today" section.  Not what I want, but a small step in the right direction.