International Space Station Tracker
See where the International Space Station (ISS) is now and when it will next cross the sky over Boulder, Colorado, United States.
Or click anywhere on the map below to manually choose an observing point.
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 for
3 min 30 sec
Cloud cover
0%
Appears
west-northwest 283.7°
Highest point
Elevation 21.8°
Disappears
north 359.2°
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
Appears
west 268.3°
Highest point
Elevation 30°
Disappears
northeast 35.6°
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
Appears
northwest 312.6°
Highest point
Elevation 14.1°
Disappears
north 354.7°
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/Denver
Pass predictions may change after an orbital manoeuvre.
Live ISS position and visible pass forecast for Boulder, United States, with local times, directions, elevation and cloud cover.
The forecast on this page lists visible passes for the next 72 hours in Boulder’s local timezone, including start, peak, end, direction and elevation.
Yes. During a visible pass it looks like a bright, steady star moving quickly across the sky above Boulder.
A pass is only listed when the ISS is sunlit while the sky over Boulder is dark enough, and the station is at least 10° above the horizon.
Yes. Cloud cover in the forecast helps you judge whether the sky will be clear enough during a pass over Boulder.
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
Related tools
This forecast uses Boulder'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.
40.0150°, -105.2706° · America/Denver