International Space Station Tracker

When can you see the ISS over Mercer Island?

See where the International Space Station (ISS) is now and when it will next cross the sky over Mercer Island, Washington, United States.

Or click anywhere on the map below to manually choose an observing point.

What counts as a visible pass?

The station must be at least 10° above the horizon, illuminated by the Sun, and passing over a sky dark enough for viewing. Times use your city’s local timezone.

Visible passes over Mercer Island in the next 72 hours

6

Next visible pass

Observing location time

–

Visible for

5 min 45 sec

Cloud cover

88%

  1. Appears

    south-southwest 210.6°

  2. Highest point

    Elevation 33.9°

  3. Disappears

    east 80.4°

Select “Where to look” to explore the pass in 3D. Drag the time slider to see where to look at any point in the pass.

Observing location time

–

Visible for
2 min 15 sec
Cloud cover
54%
  1. Appears

    west 262.2°

  2. Highest point

    Elevation 37°

  3. Disappears

    west-northwest 281.8°

Select “Where to look” to explore the pass in 3D. Drag the time slider to see where to look at any point in the pass.

Observing location time

–

Visible for
4 min 15 sec
Cloud cover
45%
  1. Appears

    west-southwest 251.1°

  2. Highest point

    Elevation 76.8°

  3. Disappears

    northeast 54.5°

Select “Where to look” to explore the pass in 3D. Drag the time slider to see where to look at any point in the pass.

Observing location time

–

Visible for
0 sec
Cloud cover
27%
  1. Appears

    west-northwest 286.5°

  2. Highest point

    Elevation 10°

  3. Disappears

    west-northwest 286.5°

Select “Where to look” to explore the pass in 3D. Drag the time slider to see where to look at any point in the pass.

Observing location time

–

Visible for
6 min 10 sec
Cloud cover
2%
  1. Appears

    west-southwest 238.8°

  2. Highest point

    Elevation 76.6°

  3. Disappears

    east-northeast 68.2°

Select “Where to look” to explore the pass in 3D. Drag the time slider to see where to look at any point in the pass.

Observing location time

–

Visible for
2 min
Cloud cover
16%
  1. Appears

    west 279.8°

  2. Highest point

    Elevation 28.9°

  3. Disappears

    west-northwest 303.3°

Select “Where to look” to explore the pass in 3D. Drag the time slider to see where to look at any point in the pass.

Forecast updated:

Observing location time: America/Los_Angeles

Pass predictions may change after an orbital manoeuvre.

ISS passes near this city

Live ISS position and visible pass forecast for Mercer Island, United States, with local times, directions, elevation and cloud cover.

Common questions about seeing the ISS in Mercer Island

When is the next visible ISS pass over Mercer Island?

The forecast on this page lists visible passes for the next 72 hours in Mercer Island’s local timezone, including start, peak, end, direction and elevation.

Can I see the ISS from Mercer Island without a telescope?

Yes. During a visible pass it looks like a bright, steady star moving quickly across the sky above Mercer Island.

Why isn’t every overhead pass listed for Mercer Island?

A pass is only listed when the ISS is sunlit while the sky over Mercer Island is dark enough, and the station is at least 10° above the horizon.

Does weather affect viewing the ISS from Mercer Island?

Yes. Cloud cover in the forecast helps you judge whether the sky will be clear enough during a pass over Mercer Island.

Data sources

Orbit data from CelesTrak using U.S. Space Force GP elements.

Weather forecast data from MET Norway (CC BY 4.0).

Orbit epoch: Nov 15, 2026, 4:56:48 AM UTC

What counts as a visible pass?

This forecast uses Mercer Island's coordinates and local timezone to calculate when the ISS is sunlit, at least 10 degrees above the horizon and crossing a dark enough sky.

Viewing location

47.5707°, -122.2221° · America/Los_Angeles