Unlikely
Best chance in Pennsylvania: Philadelphia
Free push alerts built on NOAA space weather data, plus the 72-hour forecast, cloud cover and darkness window for Philadelphia.
Northern lights in Pennsylvania are rare: they need a geomagnetic storm of Kp 7 or more to reach this far south. AuroraMe tracks 4 locations across Pennsylvania; the lowest threshold, Kp 7, is at Erie.
Cities Covered
4
Monitoring locations across Pennsylvania
Magnetic Latitude Range
49.3°–51.4° MLAT
Prime aurora viewing latitudes
Required Kp Index
Kp 7.0–8.0
Minimum activity for visibility
Kp Requirements by Location
Philadelphia
49.3° MLAT
Required Kp Levels
Kp 8.0+ Horizon
Kp 9.0+ Optimal
Kp 9.0+ Bright
Kp0Kp1Kp2Kp3Kp4Kp5Kp6Kp7Kp8Kp9
Visible on horizon
Clearly visible
Bright overhead
Erie
51.4° MLAT
Required Kp Levels
Kp 7.0+ Horizon
Kp 8.0+ Optimal
Kp 9.0+ Bright
Kp0Kp1Kp2Kp3Kp4Kp5Kp6Kp7Kp8Kp9
Visible on horizon
Clearly visible
Bright overhead
Scranton
50.7° MLAT
Required Kp Levels
Kp 8.0+ Horizon
Kp 9.0+ Optimal
Kp 9.0+ Bright
Kp0Kp1Kp2Kp3Kp4Kp5Kp6Kp7Kp8Kp9
Visible on horizon
Clearly visible
Bright overhead
Pittsburgh
49.7° MLAT
Required Kp Levels
Kp 8.0+ Horizon
Kp 9.0+ Optimal
Kp 9.0+ Bright
Kp0Kp1Kp2Kp3Kp4Kp5Kp6Kp7Kp8Kp9
Visible on horizon
Clearly visible
Bright overhead
Visible on horizon
Clearly visible
Bright overhead
Aurora Status by City
Philadelphia
Aurora reaches Philadelphia during strong geomagnetic storms at 49.3° magnetic latitude. Watch the northern horizon from a dark spot away from city lights.
CURRENT STATUS
Unlikely
View
Erie
Moderate position at 51.4° magnetic latitude. Geomagnetic storms can push the auroral oval far enough south to show aurora low on the northern horizon here.
CURRENT STATUS
Likely Visible
View
Scranton
Aurora reaches Scranton during strong geomagnetic storms at 50.7° magnetic latitude. Watch the northern horizon from a dark spot away from city lights.
CURRENT STATUS
Likely Visible
View
Pittsburgh
Aurora reaches Pittsburgh during strong geomagnetic storms at 49.7° magnetic latitude. Watch the northern horizon from a dark spot away from city lights.
CURRENT STATUS
Likely Visible
View
Best Viewing Season in Pennsylvania
In a typical year no location we track in Pennsylvania records a single clear night with Kp at its threshold. Only an extreme geomagnetic storm brings aurora this far south. Kp last reached the local threshold on 2026-07-04. Figures below are for Erie, the best-placed of the 4 locations we track in Pennsylvania. They describe a typical year built from the 1996-2026 planetary Kp record and the 2001-2020 cloud normal — not a forecast. Each city page shows tonight's live cloud, moon and darkness instead.
Geographic Advantages
Magnetic Latitude 49.3°–51.4° MLAT
Cities Covered 4 locations
Winter Darkness 11.5 h in December
Dark Sky Sites 0 Bortle 1-3
What It Would Take
Clear Nights a Year Under 1 a year
Kp Needed Kp 7-8
Last Kp Threshold 2026-07-04
Oval Position (model) 30.7° above the northern horizon
Track with AuroraMe
Coverage All 4 cities
Advance Notice 30 minutes
Weather Integration Cloud cover
Predictions Best viewing times
That oval line is a model estimate of where the aurora sits at extreme Kp, not a measurement — the threshold date above comes from the Kp record itself.
Frequently Asked Questions
Can you see the northern lights in Pennsylvania?
No — not in a typical year. Pennsylvania averages under one clear night with the aurora in reach, and the planetary index has to reach Kp 7+ for it to be visible at all, which last happened on 2026-07-04. Only an extreme geomagnetic storm brings the aurora this far south, so this is a watch-the-alerts situation rather than a month to plan around.
Where are the darkest skies in Pennsylvania?
Check our city pages for specific dark sky recommendations near each location.
