tinyE: Please tell me there is a European equivalent to this profoundly stupid tradition?! American's will never blow anyone's doors off with our sophistication but the fact we do this every year put's us on an evolutionary par with fecal bacteria and used-car salesmen.
Here in Switzerland, our meteorological experts use all manner of interesting methods to predict the weather. One of those experts specializes on ants. If there are lots of female ants, the summer will supposedly be dry. If there are more male ants, the summer will be wet. Further more, if the weather will be nice the ants won't bite you that much but if the weather is going to be bad, the ants will bite you more, especially in the head. I'll bet you didn't know that.
Here is a video but it's in Swiss German so you won't understand anything:
http://www.youtube.com/watch?v=JHd-_sn3o80 Interesting fact: Those traditional weather wizards are famous for being way more accurate than the meteorological news on national TV (though that isn't too surprising).
and here's the same guy with English subtitles:
http://www.youtube.com/watch?v=G0y1QZtoDK4