Nearly one-third of the U.S. could be among areas the National Oceanic and Atmospheric Administration said could see the aurora borealis in the sky.

The northern lights may be visible overnight from up to 27 northern U.S. states on Friday, April 17, into Saturday, April 18, 2026, during a G2 geomagnetic storm.

Nearly one-third of the U.S. could be among areas the National Oceanic and Atmospheric Administration said could see the aurora borealis in the sky.

Monday’s viewing line reaches as far south as southern Iowa.