Aurora Borealis in Northfield
United States · 44.46°, -93.16° · geomagnetic 53.1° · needs Kp 7
Tonight's aurora forecast for Northfield
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Northfield 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 Northfield
Northfield is located at 53.1° geomagnetic latitude. Auroras visible at this latitude typically require a Kp of 7 or higher.
On average, there are about 3.2 nights per year in Northfield where conditions might be suitable for viewing an aurora.
These estimates are based on historical data spanning from April 2016 to March 2026.
The best months for aurora viewing in Northfield are typically May, September, and August.
These months often provide a good balance of darkness and potential aurora activity.
Northfield experiences a Bortle 7 sky, indicating significant light pollution.
Areas with darker skies, such as Bortle 4 conditions near the Town of Stockholm, are approximately 72 km east.
Darker skies with Bortle 5 conditions can be found near Kenyon Township, about 26 km south-south-east of Northfield.
Union Lake, a lake located 11.9 km west of Northfield, offers a potential viewing location.
Chub Lake, another lake, is situated 12.7 km north-north-west of Northfield.
The Big Woods Historical Marker, a park area, is 15.0 km north-west of Northfield. Lake Byllesby County Park is 18.2 km east-north-east.
There have been 180 verified aurora reports within 300 km of Northfield between January 2015 and December 2016.
The period from April 2016 to March 2026 includes several nights with significant geomagnetic activity.
Notable qualifying nights include March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), January 19, 2026 (Kp 8.67), November 12, 2025 (Kp 7.33), and November 11, 2025 (Kp 8.67).
Sources: Revon location dataset · Revon analysis of NOAA planetary Kp · Falchi 2016 World Atlas of artificial night sky brightness · GeoNames (CC BY 4.0) · Aurorasaurus verified positive reports
Know when it is worth going outside
Revon watches the Northfield forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.
Nearby towns
Forecasts for places within reach of Northfield.