My website (whirlpool.net.au) sees IE6 account for 2.3% of traffic on weekdays and 0.9% on weekends.
Combining all versions of internet explorer together, the figures are 28% and 23%, respectively.
The only browser with a greater-than-expected boost on the weekend is Safari, but only by a very small margin compared to the increase seen by Firefox and Chrome.
All figures from GA.