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Northern Lights Forecast for Seattle, WA Tonight

Seattle can sometimes see the northern lights during stronger geomagnetic storms, but dark skies, clear weather, and lower light pollution usually matter as much as the forecast itself.

Unlikely tonight

This is probably not a night to travel

The forecast does not currently show enough aurora activity for this location. Check again later or compare places farther north.

Tonight in Seattle: None chance

Practical viewing window: 7:46 PM–6:23 AM local time

Darkness guide

Is twilight good or bad for aurora?

Darker is better. A darker sky creates more contrast, making faint colors and movement easier to see.

Full darkness

Best visibilityYour forecast

Sun below −18°

The sky offers its best contrast. Fainter aurora has a better chance of standing out.

Astronomical twilight

Good, with limits

Sun between −18° and −12°

The sky is not completely dark, but a moderate or bright display can still be clearly visible.

Nautical twilight

Difficult

Sun between −12° and −6°

Twilight still brightens the sky. Usually only vivid aurora will be easy to see with your eyes.

Bright summer sky

Poor visibility

Sun stays above −6°

The sky is too bright for routine viewing. An exceptional display may still appear, but it is not something to plan around.

Practical takeaway: aurora activity and darkness are separate. A strong forecast during twilight means aurora may be active, but the bright sky can make it harder to see.
Now
None
Typical activity
Kp 6–7
Approximate oval reach
Where to look
Low toward the northern horizon
Weather
Sky outlook unavailable
Aurora activity, darkness, and cloud cover are evaluated separately. The forecast uses the local observing night, including nights that cross UTC dates. Aurora forecast data refreshes every ten minutes. See how the forecast works.

Night-by-night forecast for Seattle

Tonight

Sep 19

None
Peak Kp 3.0

Tomorrow

Sep 20

None
Peak Kp 2.0

Monday

Sep 21

None
Peak Kp 1.7
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Local viewing guide

Aurora inSeattle

Latitude
47.6° N
Location
Washington, United States

Seattle, known for its vibrant culture and stunning natural beauty, is not typically associated with viewing the northern lights. However, with the right conditions, it is possible to catch a glimpse of this mesmerizing natural phenomenon from the city.

Due to Seattle's relatively southern latitude, the chances of seeing the northern lights are lower compared to regions located closer to the Arctic Circle. The aurora borealis is typically seen in areas farther north with clear, dark skies free of light pollution.

If you are in Seattle and hoping to witness the northern lights, your best bet is to keep an eye on space weather forecasts and look for nights with high geomagnetic activity. Additionally, heading away from the city lights to darker areas like national parks or coastal regions can improve your chances of spotting the aurora.

While sightings are not guaranteed, with patience, luck, and favorable conditions, it is possible to experience the magic of the northern lights even from a city like Seattle.

How to use tonight's forecast in Seattle

The current aurora chance for Seattle is None. Use the local viewing guide above for Seattle-specific context, then combine the live rating with darkness and weather.

What the current chance means

A none or near-none chance in Seattle usually means tonight is not a strong aurora setup for this location. It is still useful context, because you can compare later updates or look at cities farther north for better odds.

Learn

Aurora guides for nights like Seattle

Read these guides when the Seattle forecast looks interesting but you still need help judging darkness, season, or viewing conditions.

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