Chicago, IL – Residents across the Great Lakes region may have a chance to see the aurora borealis overnight tonight into early Friday, as increased solar activity raises the likelihood of northern lights visibility between Thursday night, Jan. 2, and Friday morning, Jan. 3, 2026.
According to the NOAA Space Weather Prediction Center, geomagnetic conditions are forecast to reach a Kp index of 6, indicating a moderate geomagnetic storm. These conditions can expand the auroral oval far enough south to bring visible auroras into portions of the northern United States, including the Great Lakes states.
The best viewing window is expected after midnight, when geomagnetic activity often peaks and skies are darkest. Areas with the highest potential include northern Michigan, northern Wisconsin, northern Minnesota, and parts of northern Illinois and Indiana, especially in rural locations with minimal light pollution and a clear view toward the northern horizon.
Major metro areas such as Chicago, Milwaukee, Detroit, and Cleveland may experience limited visibility due to city lights, but observers could still see faint green or reddish glows under ideal conditions. Long-exposure photography may capture aurora colors not easily visible to the naked eye.
Auroras occur when charged particles from the sun interact with Earth’s magnetic field, energizing gases in the upper atmosphere. While visibility is never guaranteed, Kp 6 events have historically produced aurora sightings across the Great Lakes region, particularly during winter months when nights are longest.
NOAA officials also urge those planning to watch the skies to prepare for very cold overnight temperatures, dress in layers, and limit prolonged exposure.
