For those who didn't see them back in May, or the encore performance in October, here's what to know about seeing the sky ... view line for the northern lights extending as far south as northern Iowa.

You may want to look up in the sky ... Iowa before turning mostly clear around 7 p.m. For eastern Iowa, rain could stick around through about 10 p.m. In Des Moines, Ames and Iowa City, Saturday ...

Get ready to look up at the Iowa sky because there will be a rare planet ... if you can find a location free of light pollution and a view of the horizon free of obstructions like trees or tall ...