It may be possible for many in North America to see the Northern Lights this evening. A link showing the predicted extent by latitude is here. Click on the link for the northern hemisphere for a larger display.
As always, a dark sky and an unobstructed view in northerly directions are important. David J., however, ought to be made in the shade on this one.
–Astro Mogget
On Edit: Probably tomorrow night, but tonight is possible as well.