Visible passes over Boulder in the next 72 hours
Forecast updated: Thu, Oct 1, 05:36:12 AM
No visible ISS passes are predicted in the next 72 hours.
The ISS still passes nearby, but it may be in Earth’s shadow or your sky may be too bright.
ISS passes near this city
Live ISS position and visible pass forecast for Boulder, United States, with local times, directions, elevation and cloud cover.
Common questions about seeing the ISS in Boulder
When is the next visible ISS pass over Boulder?
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.
Can I see the ISS from Boulder without a telescope?
Yes. During a visible pass it looks like a bright, steady star moving quickly across the sky above Boulder.
Why isn’t every overhead pass listed for 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.
Does weather affect viewing the ISS from Boulder?
Yes. Cloud cover in the forecast helps you judge whether the sky will be clear enough during a pass over Boulder.
Data sources
Weather forecast data from MET Norway (CC BY 4.0).
Orbit epoch: Oct 1, 2026, 2:39:00 AM UTC
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Next visible ISS pass
No visible pass is currently predicted in the next 72 hours.
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.
Viewing location
40.0150°, -105.2706° · America/Denver