If you find yourself in one of the 18 states listed above (or simply want to try your luck) head to a dark, north-facing spot away from city lights. As we approach the summer solstice on June 20/21, nights are growing shorter, so your best window for viewing may be in the early morning hours, around 1 to 2 a.m.

A rare Northern Lights display could be visible across the northern United States on Monday. See where and when to watch the aurora borealis, plus viewing tips from NOAA.