for a given day, like Tuesday, Mar 1, the high/low is shown as 63/49. Now, is the 49
the low of Tuesday morning, or Wednesday morning. Different weather channels do it
differently. If I'm a golfer worried about the cold, as a couple of my friends are,
then I want to know the temperature in the morning of the day I'm playing golf.
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Here's a better depiction:
http://www.wunderground.com/q/zmw:22301.1.99999
You can move the cursor along the line graphs and get all of the daily
information hour by hour.
I like Wunderground, too. I pay the $5 per year to remove the ads and
get more info. It's a great deal.