ISS (Zarya) over St. Louis tonight
Pass predictions for St. Louis, MO.
Next visible pass
Sat, Jul 25, 8:01 PM
Peak elevation 21.39° · rises NW · sets E
Tracking: ISS (ZARYA) (NORAD 25544)
7-day pass forecast
| Date | Time | Peak elev | Rises | Sets |
|---|---|---|---|---|
| Jul 25 | 8:01 PM | 21.39° | NW | E |
| Jul 25 | 9:37 PM | 52.37° | NW | SE |
| Jul 26 | 12:45 PM | 10.39° | SE | E |
| Jul 26 | 2:19 PM | 71.22° | SW | NE |
| Jul 26 | 3:57 PM | 15.26° | NW | NE |
| Jul 26 | 7:13 PM | 16.15° | N | NE |
| Jul 26 | 8:49 PM | 74.38° | NW | SE |
How to spot ISS (Zarya) from St. Louis
International Space Station, the largest crewed object in low Earth orbit.
- Look in the direction listed — passes start near the horizon and arc across the sky.
- Peak elevation matters — a 60°+ peak means it'll go nearly overhead; under 30° stays low.
- Best viewing is in the 90 minutes after sunset or before sunrise — the satellite is sunlit while you're in shadow.
- No equipment needed for bright passes — the ISS at peak rivals Venus.
Going to look up?
For fainter satellites you'll want 7×50 or 10×50 binoculars. A pair of Celestron SkyMaster binoculars is the consensus pick. Affiliate placement — replace with your affiliate link.
Pass alerts on your phone
Browser push, no email needed. We'll notify you 30 minutes before ISS (Zarya) is visible from St. Louis.
Prefer email?
One email tonight before ISS (Zarya) is visible, never more than 2/week.