Northern lights in Minnesota tonight
Northern Minnesota, USA · Kp 5 from Duluth · 52° magnetic latitude
Kp 1 is well below the Kp 5 threshold needed for aurora to be visible from Minnesota.
7-day outlook for Minnesota
Tonight shows the live Kp reading. The nights after it show the Kp expected from any coronal mass ejection DONKI predicts will arrive that day, and a quiet baseline of Kp 2 where no arrival is forecast.
Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.
auroratonight.space
What Kp is needed here?
Minnesota's threshold comes from Duluth, at a magnetic latitude of approximately 52°N. The Kp index - a global measure of geomagnetic activity on a scale from 0 (quiet) to 9 (extreme storm), updated every 3 hours - needs to reach Kp 5 before the auroral oval expands far enough south to be visible from Duluth.
At Kp 5, visibility is possible from Minnesota but skies need to be clear and dark. Cloud cover and light pollution remain the main obstacles even when Kp is high enough.
Best dark sky sites near Minnesota
Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.
Boundary Waters Canoe Area Wilderness
Get directions ↗Over 1 million acres of wilderness on the Minnesota-Canada border with almost no artificial light. The remotest sections - accessible only by canoe portage - have Bortle 1-2 conditions, among the darkest in the continental USA. The open lake surfaces give north-facing sky views. Paddling to a campsite under the auroral oval conditions during a Kp 5 event and watching full-sky aurora overhead is the most remote aurora position accessible without floatplane in the lower 48.
Voyageurs National Park
Get directions ↗A water-based national park on the Canadian border with minimal road access. The park is officially designated an International Dark Sky Park. The broad lake surfaces give unobstructed north-facing views and aurora reflection shots. Accessible by boat, snowmobile in winter, or floatplane. The park visitor center at Rainy Lake has clear north sky.
Lake Superior north shore (Grand Marais)
Get directions ↗The north shore of Lake Superior between Duluth and the Canadian border has some of the darkest skies in Minnesota accessible by highway. Grand Marais is a small town with minimal light pollution. The lake shore gives a broad water horizon to the east and northeast. State parks along the shore (Cascade River, Judge CR Magney) give official dark sky positions.
Best time to see the northern lights in Minnesota
Its threshold set by Duluth at about 52°N magnetic latitude, Minnesota sits at the lower end of regular aurora territory. Only the deep mid-winter months of November through January offer nights dark enough for aurora to be visible, and only then when a significant geomagnetic storm pushes the auroral oval this far south.
Activity peaks around the September and March equinoxes, when Earth's magnetic field geometry is most favourable for coupling with the solar wind. Events during these two windows tend to produce the strongest displays of the year for observers at Minnesota's latitude.
Outside November through January, twilight is too bright for aurora viewing even during significant storms. The season is short, but the equinox months on either side of winter can extend it slightly when storm timing aligns.
Up to 8 locations
How often does the aurora appear in Minnesota?
Average nights per month the Kp reached Minnesota's threshold of 5+, from 15 years of geomagnetic data (2010–2024).
Counts the Kp 5+ threshold only - cloud cover and local darkness are not included.
Kp data: GFZ German Research Centre for Geosciences, CC BY 4.0
Plan your trip to Minnesota
Best window
The August to October window averages 9 aurora nights - the strongest consecutive stretch of the year.
How long to stay
For your best chance in September, plan at least 13 nights.
Related pages
Northern Lights USA
USA-wide aurora forecast hub.
Read →Northern Lights Michigan Tonight
Michigan Upper Peninsula - Lake Superior dark sky, similar latitude.
Read →Northern Lights Fairbanks Tonight
Fairbanks - Alaska's aurora capital for dedicated aurora trips.
Read →What Is the Kp Index?
What Kp 5 means for viewing at 53°N magnetic latitude.
Read →Northern Lights Photography
Camera settings for Boundary Waters canoe lake aurora.
Read →Aurora photographs from Minnesota
Real photos sourced from Wikimedia Commons.
Aurora over Minnesota
Aurora over Minnesota
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