Last Updated: Septempber 20, 2026 – 8:00 AM
Our current water level at The Alton Marina is 417 ft. (7′ +/-. within the harbor).
The most current USACE water forecast is predicting lower water levels over the next 5 days. This forecast, of course, can change with upper river basin rainfall. As always, we will monitor the forecast daily and advise accordingly. Please check our Facebook page as well for more daily updates.
If you have any questions, please do not hesitate to contact the Marina office at 618-462-9860. Safe travels!
PUBLIC LAUNCH RAMP OPEN — VESSELS OVER 30′ IN LENGTH USE CAUTION
Please see the following links for more river data:
Click Here for the USACE 7-Day Forecast
National Weather Service Advanced Hydrologic Prediction Service
