Aurora Borealis in Duluth
United States · 46.78°, -92.11° · geomagnetic 55.5° · needs Kp 7
Tonight's aurora forecast for Duluth
5%
Peak chance of a visible display tonight, from the same model the Revon app runs. Duluth needs Kp 7 to see anything at all, and tonight the forecast peaks at Kp 4.7. Short of the threshold, which is what most nights look like here.
Get the full 30-night forecast in Revon
Updated 2026-09-08 10:36 UTC
Local aurora guide for Duluth
Duluth is located at a geomagnetic latitude of 55.5 degrees.
Auroras are typically visible at this latitude when the planetary Kp index reaches 7.
On average, there are about 3.2 nights per year when these conditions are met.
The best months for aurora viewing in Duluth are May, August, and September.
These months offer a good balance of darkness and potential aurora activity.
Duluth experiences a Bortle 4 sky, indicating a relatively dark sky.
Areas with Bortle 4 conditions are found 9 km east-south-east of the city.
The horizon is relatively clear in several directions, with parks and lakes offering open views.
Chester Park is located 3.6 km north-north-east of Duluth.
Minnesota's Oldest Concrete Pavement Historical Marker is a park situated 4.4 km north-east of Duluth.
Goose Lake is a lake 9.9 km north-east of Duluth, and Mud Lake is a lake 10.5 km north of the city. Moose Mountain is a mountain 12.8 km north-east of Duluth.
Between 2016 and 2026, there were an average of 3.2 nights per year suitable for aurora viewing in Duluth.
The historical record spans from April 2, 2016, to March 30, 2026.
Notable qualifying nights include January 19, 2026 (Kp 8.67), November 11, 2025 (Kp 8.67), and January 20, 2026 (Kp 7.67).
Sources: Revon analysis of NOAA planetary Kp · Falchi 2016 World Atlas of artificial night sky brightness · GeoNames (CC BY 4.0)
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Forecasts for places within reach of Duluth.