Northern lights in Massachusetts tonight
Massachusetts, USA · Kp 6 threshold
Kp 1 is well below the Kp 6 threshold needed for aurora to be visible from Massachusetts.
7-day outlook for Massachusetts
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?
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 6 before the auroral oval expands far enough south to be visible from here.
At Kp 6, visibility is possible from Massachusetts 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 Massachusetts
Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.
Mount Greylock State Reservation
Get directions ↗The highest point in Massachusetts at 1063 m, in the Berkshires near Adams. Above the tree canopy on the summit, the horizon is open in all directions with minimal nearby light pollution. The summit road gives drive-up access from spring through autumn. North-facing views from the summit extend toward Vermont with no significant light domes. Bortle 3-4. About 130 miles from Boston via I-90. The Berkshire plateau generally gives the darkest accessible sky in the state, with several state forest roads giving comparable conditions.
Cape Cod National Seashore - Provincetown
Get directions ↗The outer Cape at Provincetown faces north across Cape Cod Bay toward the open Atlantic. The Province Lands dunes north of Route 6 give a dark northern horizon - no significant settlement between the Cape tip and Nova Scotia. Bortle 3-4. The ocean horizon eliminates any ground-level light, and the north-facing beach gives the best possible viewing angle for aurora. Accessible year-round. About 115 miles from Boston via US-6.
Quabbin Reservoir
Get directions ↗A large protected reservoir and forest in central Massachusetts, about 85 miles from Boston. The reservoir's undeveloped north shore gives open water views and Bortle 3 conditions, particularly from the Gate 35 and Gate 40 areas on the north edge. The lack of development for 5 km in all directions around the main reservoir basin keeps this area significantly darker than most central Massachusetts locations. Accessible via Winsor Dam and the reservation roads.
Best time to see the northern lights in Massachusetts
Massachusetts 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 Massachusetts'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 Massachusetts?
Average nights per month the Kp reached Massachusetts's threshold of 6+, from 15 years of geomagnetic data (2010–2024).
Counts the Kp 6+ 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 Massachusetts
Best window
The August to October window averages 3 aurora nights - the strongest consecutive stretch of the year.
How long to stay
Aurora at this latitude requires patience - allow as many nights as possible during September.
Related pages
Northern Lights USA
USA-wide aurora forecast hub.
Read →Northern Lights Maine Tonight
Maine - Acadia NP, similar latitude, darker skies.
Read →Northern Lights Vermont Tonight
Vermont - Northeast Kingdom Bortle 2-3, slightly higher latitude.
Read →Northern Lights New York Tonight
New York - Adirondacks interior, similar Kp threshold.
Read →What Is the Kp Index?
What Kp 6 means for viewing in Massachusetts.
Read →Aurora photographs from Massachusetts
Real photos sourced from Wikimedia Commons.
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