There’s a chance for a minor northern lights storm tonight and tomorrow night for skywatchers in the northern U.S. and southern Canada. Both an increase in the speed of the solar wind and a favorable orientation of the local solar magnetic field are behind the uptick. In the meantime, check the Kp index. If Kp = 4 or higher, auroras are possible. (Update: the aurora DID make an appearance early this evening.)
Typically the best time to catch the lights is around midnight, but if you’re up even later, you’ll be able to see a wonderful conjunction of Jupiter and the crescent moon in the constellation Gemini. Look to the east between 2:30 and 5 a.m. local time tomorrow morning Saturday.