Where are the best dark-sky places to watch the aurora in Pennsylvania?

Cherry Springs State Park (Potter County): Certified Gold-Tier International Dark Sky Park at 2,300 feet on the Susquehannock plateau with a 360-degree Overnight Astronomy Observation Field. Presque Isle State Park (Erie): Miles of Lake Erie beaches with a 0-degree water horizon looking straight north toward Ontario. Moraine State Park (Lake Arthur, Butler County): 45 minutes north of Pittsburgh with wide north-facing lakeshore sightlines. Lake Nockamixon & Blue Mountain Overlooks (Bucks/Lehigh Counties): Accessible dark northern horizons 60–75 minutes north of Philadelphia.

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Can I See the Northern Lights in Pennsylvania Tonight?

Q: What Kp index is needed to see the Northern Lights in Pennsylvania?

Pennsylvania spans 49.5°N – 52.1°N geomagnetic latitude and requires approximately Kp 6.0 on the northern horizon and Kp 7.5 for overhead displays (G2 (Kp 5.5–6) for Erie & Cherry Springs; G2–G3 (Kp 6.5) for Pittsburgh & Philadelphia). Northern Pennsylvania—including Presque Isle on Lake Erie and Cherry Springs State Park in Potter County—sits near 52°N geomagnetic latitude and hosts some of the darkest night skies in the eastern United States. From northern PA, a NOAA G2 moderate storm (Kp 5.5 to 6) brings green and red aurora to the northern horizon. Further south around Pittsburgh, Harrisburg, and Philadelphia, wait for Kp 6.5 (G2–G3) for horizon glow or Kp 7.5+ for overhead displays.

Live NOAA SWPC geomagnetic telemetry paired with centered-dipole geomagnetic latitudes (49.5°N – 52.1°N) and local horizon vs. overhead Kp thresholds for Pennsylvania. Updated Sun Nov 1, 12:02 AM ET (auto-refreshes every 60 seconds).

✦ IN PLAIN ENGLISH — THE 30-SECOND TAKEAWAY Northern Lights (Aurora Borealis) · US States

Northern Pennsylvania—including Presque Isle on Lake Erie and Cherry Springs State Park in Potter County—sits near 52°N geomagnetic latitude and hosts some of the darkest night skies in the eastern United States. From northern PA, a NOAA G2 moderate storm (Kp 5.5 to 6) brings green and red aurora to the northern horizon. Further south around Pittsburgh, Harrisburg, and Philadelphia, wait for Kp 6.5 (G2–G3) for horizon glow or Kp 7.5+ for overhead displays.

Geomagnetic Latitude & Look Direction

49.5°N – 52.1°N · Look toward the Northern horizon from a dark site away from city lights.

NOAA Kp & G-Scale Needed

G2 (Kp 5.5–6) for Erie & Cherry Springs; G2–G3 (Kp 6.5) for Pittsburgh & Philadelphia (Horizon: Kp 6.0 · Overhead: Kp 7.5).

☀ LIVE TONIGHT STATUS CARD

Live Tonight Status for Pennsylvania

Snapshot: Sun Nov 1, 12:02 AM ET · Refreshes every 60s

QUIET — Below Pennsylvania Threshold Tonight (Needs Kp 6.0+)

NOAA's current Kp (4.67) and 3-day forecast peak (Kp 4.67) are currently below Pennsylvania's northern-horizon threshold of Kp 6.0 (overhead requires Kp 7.5).

Current Planetary Kp Kp 4.67

Forecast Peak Kp Kp 4.67

Solar Wind Speed 532.0 km/s

IMF Bz (North/South) -2.0 nT

Pennsylvania Thresholds Kp 6.0 / 7.5

Best seasonal window: September – April · Look direction: North · Compare all 28 State, Province & Region Guides or check our Live Space Weather Dashboard.

City-by-City Aurora Thresholds in Pennsylvania

Centered-dipole geomagnetic latitudes (WMM2025 pole at 80.85°N, 72.76°W) and minimum Kp required on the northern horizon vs. directly overhead. Status badges update automatically from live NOAA telemetry.

City / Area	Coordinates	Geomagnetic Lat	Horizon Kp	Overhead Kp	Tonight's Live Status
Erie (Presque Isle), PA Look straight north over dark Lake Erie (~51.9°N geomag); horizon at Kp 5.5–6	42.13°N, 80.09°W	51.2°N	Kp 6.0	Kp 8.0	QUIET — Needs Kp 6.0+
Coudersport (Cherry Springs State Park), PA Gold-Tier International Dark Sky Park (~51.6°N geomag); Kp 5.5–6	41.66°N, 77.82°W	50.8°N	Kp 6.5	Kp 8.0	QUIET — Needs Kp 6.5+
Pittsburgh, PA Visible on the northern horizon at Kp 6–6.5 from rural parks north of the city	40.44°N, 80.00°W	49.5°N	Kp 7.0	Kp 9.0	QUIET — Needs Kp 7.0+
Philadelphia, PA Northern horizon in G3 storms (Kp 6.5–7) outside suburban light domes	39.95°N, 75.17°W	49.1°N	Kp 7.0	Kp 9.0	QUIET — Needs Kp 7.0+

Best Dark-Sky Viewing Locations in Pennsylvania

Cherry Springs State Park (Potter County): Certified Gold-Tier International Dark Sky Park at 2,300 feet on the Susquehannock plateau with a 360-degree Overnight Astronomy Observation Field.
Presque Isle State Park (Erie): Miles of Lake Erie beaches with a 0-degree water horizon looking straight north toward Ontario.
Moraine State Park (Lake Arthur, Butler County): 45 minutes north of Pittsburgh with wide north-facing lakeshore sightlines.
Lake Nockamixon & Blue Mountain Overlooks (Bucks/Lehigh Counties): Accessible dark northern horizons 60–75 minutes north of Philadelphia.

Seasonal & Cloud Timing for Pennsylvania

Cherry Springs plateau elevation: Sitting atop the Allegheny Plateau in the Pennsylvania Wilds, Cherry Springs escapes urban light domes from both NY and PA.
Lake Erie north-shore openness: From August through October (before winter lake-effect clouds), Presque Isle offers unobstructed water views down to the horizon.
High-altitude red aurora in southern PA: From Pittsburgh or the Lehigh Valley during G2–G3 storms, look for tall ruby-red oxygen pillars rising 15–35 degrees in the northern sky.

Phone & Camera Settings for Pennsylvania (49.5°N – 52.1°N Geomagnetic)

Red-light etiquette at Cherry Springs: Cherry Springs enforces strict red-flashlight rules; dim your camera LCD screen to minimum and tape over bright indicator LEDs.
4–8 second exposures at f/2.8, ISO 3200: Pulls out vivid crimson, magenta, and green curtains over Lake Erie or the Pennsylvania Wilds.
Smartphone Night Mode: Even a 3-second handheld or car-roof Night Mode photo from rural Bucks,Chester, or Butler County captures G3–G4 auroras.

Want step-by-step exposure tables? Read our full iPhone, Android & Camera Aurora Photography Guide and Aurora & Solar Observing Gear Guide.

Vetted Dark-Sky Stays, Guided Chases & Field Guides for Pennsylvania

Planning an overnight dark-sky trip in Pennsylvania (Erie, Pennsylvania, US) or comparing high-latitude lodges directly under the auroral oval? Use the vetted links below:

Search Pennsylvania Stays on Booking.com → Compare Pennsylvania Hotels on Expedia → Browse Pennsylvania Night & Sky Tours (GetYourGuide) →

38 Vetted 3★+ Aurora Resorts, Glass Igloos & Wilderness Lodges: Compare top-rated stays (4.3+/5 across 100+ reviews) in Fairbanks, Yellowknife, Churchill, Tromsø, Abisko, Rovaniemi, and Iceland.
Aurora Chasing & Space Weather Field Guides: Vetted books by Dr. Melanie Windridge, Tom Kerss (Royal Observatory Greenwich), and Dr. Stuart Clark on Books & Further Reading (Bookshop.org).
All 78 Cities & 28 State/Region Tonight Guides · 78-City Aurora Calculator · Live Space Weather Dashboard · Free Embeddable Space Weather Widget

FTC affiliate disclosure: Lodging links above route to Booking.com and Expedia via Stay22 (aid=solarevidence, campaign=aurora-pennsylvania), activity links go to GetYourGuide (partner_id=Z35Q282), and book links go to Bookshop.org (130218). If you book or buy through them, Solar Evidence may earn a commission at no extra cost to you. All affiliate links carry rel="sponsored nofollow noopener". Commissions never affect our NOAA data thresholds or evidence ratings. Affiliate policy.