All locations USA Glacier National Park

Northern lights Glacier National Park tonight

Glacier National Park in Montana sits at ~56°N magnetic latitude and needs only Kp 2 - the same threshold as Tromsø, Norway. Aurora appears several dozen times per year when skies are clear. Many Glacier Valley, Lake McDonald, and Two Medicine Lake all give Bortle 2 dark sky with dramatic mountain and water foregrounds. The park's International Dark Sky designation covers the entire 4000 km² interior. Best season: September to April.

Aurora visibility - Glacier National Park

Low chance tonight

Kp 1 is below the threshold for Glacier National Park. Activity would need to rise to Kp 2–3 before aurora could reach this latitude.

Current Kp

1

of 9

Threshold for Glacier National Park: Kp 2–3 Magnetic latitude: ~56°N Updated: 3 Jun, 18:14 UTC
↓ Bz nT Solar wind km/s Density p/cm³
Conditions right now: Kp + Bz + solar wind + cloud + moon

7-day outlook for Glacier National Park

Today

3 Jun

Quiet

Tomorrow

4 Jun

Quiet

Fri

5 Jun

Quiet

Sat

6 Jun

Quiet

Sun

7 Jun

Quiet

Mon

8 Jun

Quiet

Tue

9 Jun

Quiet

Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.

auroratonight.space

What Kp is needed here?

Glacier National Park sits at a magnetic latitude of approximately 56°N. 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 2–3 before the auroral oval expands far enough south to be visible from here.

At Kp 2–3, visibility is possible from Glacier National Park 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 Glacier National Park

Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.

Many Glacier Valley

Get directions ↗
Bortle 2 12 miles from Babb via Many Glacier Road

On the park's east side near Babb, the Many Glacier Valley faces north across the Swiftcurrent Lake chain toward the Canadian border. At 48.8°N geographic and surrounded by peaks rising to 3000 m, the valley gives a dramatic mountain foreground with Bortle 2 conditions. The north-facing opening of the valley channels the view directly toward the auroral oval. Many Glacier Hotel and the Swiftcurrent Motor Inn both give lakeside positions. The valley road typically closes in autumn but camping and lodge access extends into September. One of the most photographed aurora locations in the park.

Lake McDonald - west side

Get directions ↗
Bortle 2 3 miles from West Glacier via Apgar Road

The largest lake in the park, on the west side near the Apgar Village. Lake McDonald gives a long open reflection surface facing northwest with the Garden Wall peaks behind. The north end of the lake near Apgar gives the best sky access with the mountains as backdrop. Bortle 2-3. Accessible year-round from Apgar Village on US-2. The lake's glassy surface in calm conditions gives lake-reflection photography opportunities. The west side of the park near West Glacier is accessible when Going-to-the-Sun Road is closed.

Two Medicine Valley

Get directions ↗
Bortle 2 15 miles from East Glacier via Two Medicine Road

A quieter valley on the southeast corner of the park near East Glacier. Two Medicine Lake faces northwest with the Lewis Range as backdrop. Bortle 2. Less visited than Many Glacier but equally dark. The valley access road closes in winter. The combination of the lake, the peaks, and the north-facing position makes Two Medicine an excellent aurora photography location during the September-October shoulder season before the road closes.

Glacier rim / Chief Mountain International Highway (US-89)

Get directions ↗
Bortle 2 4 miles north of Babb on US-89

The approach road to Many Glacier along US-89 north of Babb passes through open prairie that faces directly north toward the Canadian border with Chief Mountain as a distinctive landmark. At 48.9°N geographic and with 360-degree open sky on the prairie approach, this corridor gives excellent aurora access even when park campgrounds are full. The Saint Mary Lake area at the east park entrance gives similar conditions with lake foreground.

Best time to see the northern lights in Glacier National Park

At 56°N magnetic latitude, Glacier National Park has one of the longest aurora seasons in the world. Meaningful darkness returns in late August and displays are possible on almost any clear night from September through March. Only the endless daylight of May, June, and July rules out viewing completely.

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 Glacier National Park's latitude.

May through July is effectively impossible for aurora viewing: the midnight sun keeps the sky bright around the clock at this latitude. No storm level, not even G5, can produce a visible display without astronomical darkness.

Compare nearby locations

Up to 4 locations

Low chance
Kp 1 need Kp 2
Checking darkness…
Montana

USA

Unlikely
Kp 1 need Kp 4-5
Checking darkness…
Whitefish

USA

Unlikely
Kp 1 need Kp 4
Checking darkness…

Aurora photographs from Glacier National Park

Aurora borealis over Glacier National Park

Aurora borealis over Glacier National Park

U.S. National Park Service · Public domain · Source

Aurora borealis over Glacier National Park

Aurora borealis over Glacier National Park

NPS · Public domain · Source

Aurora borealis over Glacier National Park

Aurora borealis over Glacier National Park

NPS · Public domain · Source

Common questions

Aurora at Glacier NP - Many Glacier, Lake McDonald, best season, and how it compares to Whitefish and the Montana state page.

Can you see the northern lights in Glacier National Park?
Yes, regularly. Glacier NP at ~56°N magnetic latitude needs only Kp 2 - the same threshold as Tromsø in Norway and Yellowknife in Canada. This means aurora is visible several dozen nights per year when skies are clear. Many Glacier Valley, Lake McDonald, and the Two Medicine area are the park's best aurora positions. The park's International Dark Sky Park designation and the absence of development inside the park boundaries give Bortle 2 conditions throughout.
What Kp is needed for aurora at Glacier National Park?
Kp 2 from the park interior - Many Glacier, Lake McDonald, Two Medicine, and St Mary Lake. At 56°N magnetic latitude, Glacier NP is in the same aurora band as southern Scandinavia. A quiet aurora night that would require Kp 5 in Colorado needs only Kp 2 here. Aurora is a year-round feature at Glacier's latitude, limited mainly by darkness hours (minimal dark sky in June-July) and cloud cover rather than geomagnetic activity thresholds.
When is the best time for aurora at Glacier National Park?
September to April, with September being particularly productive - the park is still accessible before winter closures, nights are long enough after the late-summer solstice, and the equinox brings elevated geomagnetic activity. October is excellent: longer nights, the park much quieter, and the aspen and larch in autumn colour for photography. Winter (November-March) has the longest darkness but Going-to-the-Sun Road is closed above the lower valleys. The Many Glacier and west side remain accessible in winter.
Which is better for aurora - Glacier NP or Whitefish?
Glacier NP for aurora viewing quality: Bortle 2 inside the park versus Bortle 3-4 from Whitefish. Whitefish for aurora trip logistics: accommodation, restaurants, and the Whitefish Mountain Resort. Many Glacier aurora photographers stay in Whitefish or Browning and drive the 30-45 minutes to the park for clear nights. The park entry fee applies year-round. For extended aurora photography stays, Many Glacier Hotel or the St Mary area give the closest base inside the park during the open season (June-September).
Is Glacier National Park good for aurora photography?
One of the best in the USA. The combination of ~56°N magnetic latitude, Bortle 2 darkness, and dramatic mountain and lake foregrounds makes Glacier a top-tier aurora photography destination. Many Glacier Valley gives the Lewis Range peaks reflected in Swiftcurrent Lake. Lake McDonald gives a long still-water surface reflecting aurora colours. The Two Medicine Valley gives the medicine grizzly-country peaks. At Kp 2 or above, aurora appears several times per month through the dark season - much more frequently than lower-latitude parks.

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