Missouri River at St. Charles
No watches, warnings or advisories are in effect for this area.
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Downstream gauge unavailableWarning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 06/20/2025 9:00 AM CDTOfficial Forecast (FCST) 06/20/2025 9:09 AM CDTRecord: 40.1 ftCATEGORY STAGE 
Major Flooding 36 ft Moderate Flooding 30 ft Minor Flooding 25 ft Action 23 ft Reliability of the Forecast:
NOTE: Forecasts are issued routinely year-round.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 42.2 - This is the approximate minimum level of protection provided by the Monarch levee protecting Chesterfield Valley. Since this gage is affected by Mississippi River backwater, the actual level of overtopping may be higher.
- 38 - Floor of the gage house.
- 37 - Residences north of St. Charles become cut off near this height.
Gauge Info
| Coordinates | 38.7889, -90.4708 |
| RFC | MBRFC |
| State | MO |
| WFO | LSX |
| County | St. Louis |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 06935965 |
Gauge Location
Recent Crests
| 1. | 27.61 ft | on 05-01-2024 |
| 2. | 25.27 ft | on 06-04-2022 |
| 3. | 26.84 ft | on 05-06-2022 |
| 4. | 29.21 ft | on 06-29-2021 |
| 5. | 26.42 ft | on 04-13-2021 |
Recent Crests
| 1. | 27.61 ft | on 05-01-2024 |
| 2. | 25.27 ft | on 06-04-2022 |
| 3. | 26.84 ft | on 05-06-2022 |
| 4. | 29.21 ft | on 06-29-2021 |
| 5. | 26.42 ft | on 04-13-2021 |
| 6. | 29.09 ft | on 03-20-2021 |
| 7. | 25.88 ft | on 06-07-2020 |
| 8. | 27.95 ft | on 05-31-2020 |
| 9. | 27.11 ft | on 03-21-2020 |
| 10. | 28.03 ft | on 01-12-2020 |
| 11. | 27.88 ft | on 10-12-2019 |
| 12. | 26.57 ft | on 09-03-2019 |
| 13. | 26.83 ft | on 08-26-2019 |
| 14. | 25.01 ft | on 08-22-2019 |
| 15. | 35.59 ft | on 06-09-2019 |
| 16. | 30.59 ft | on 04-01-2019 |
| 17. | 25.13 ft | on 01-01-2019 |
| 18. | 26.70 ft | on 10-15-2018 |
| 19. | 26.32 ft | on 05-25-2017 |
| 20. | 35.91 ft | on 05-05-2017 |
| 21. | 25.09 ft | on 04-08-2017 |
| 22. | 26.69 ft | on 06-01-2016 |
| 23. | 25.56 ft | on 05-01-2016 |
| 24. | 35.11 ft | on 12-31-2015 |
| 25. | 27.72 ft | on 12-19-2015 |
| 26. | 33.81 ft | on 06-03-2013 |
| 27. | 27.36 ft | on 04-20-2013 |
| 28. | 25.49 ft | on 08-26-2011 |
| 29. | 28.03 ft | on 07-04-2011 |
| 30. | 28.14 ft | on 05-28-2011 |
| 31. | 26.06 ft | on 05-23-2011 |
| 32. | 26.27 ft | on 04-30-2011 |
| 33. | 26.71 ft | on 09-25-2010 |
| 34. | 25.18 ft | on 07-24-2010 |
| 35. | 28.28 ft | on 07-10-2010 |
| 36. | 29.38 ft | on 06-22-2010 |
| 37. | 30.22 ft | on 05-19-2010 |
| 38. | 26.43 ft | on 04-28-2010 |
| 39. | 26.67 ft | on 03-29-2010 |
| 40. | 25.53 ft | on 03-17-2010 |
| 41. | 27.10 ft | on 11-01-2009 |
| 42. | 25.11 ft | on 10-10-2009 |
| 43. | 28.60 ft | on 06-19-2009 |
| 44. | 28.19 ft | on 05-02-2009 |
| 45. | 31.82 ft | on 09-17-2008 |
| 46. | 27.32 ft | on 08-01-2008 |
| 47. | 28.99 ft | on 07-02-2008 |
| 48. | 29.47 ft | on 06-19-2008 |
| 49. | 25.04 ft | on 06-07-2008 |
| 50. | 27.01 ft | on 04-12-2008 |
| 51. | 27.47 ft | on 03-20-2008 |
| 52. | 29.36 ft | on 05-13-2007 |
| 53. | 27.09 ft | on 01-06-2005 |
| 54. | 24.89 ft | on 03-07-2004 |
| 55. | 21.24 ft | on 05-12-2003 |
| 56. | 31.70 ft | on 05-15-2002 |
| 57. | 30.50 ft | on 06-10-2001 |
| 58. | 25.90 ft | on 02-28-2001 |
| 59. | 21.15 ft | on 06-28-2000 |
| 60. | 30.00 ft | on 10-09-1998 |
| 61. | 29.00 ft | on 04-05-1998 |
| 62. | 28.30 ft | on 04-16-1997 |
| 63. | 28.80 ft | on 02-27-1997 |
| 64. | 29.60 ft | on 06-02-1996 |
| 65. | 36.50 ft | on 05-21-1995 |
| 66. | 35.40 ft | on 04-15-1994 |
| 67. | 40.04 ft | on 08-02-1993 |
| 68. | 34.60 ft | on 05-19-1990 |
| 69. | 27.30 ft | on 04-17-1987 |
| 70. | 37.50 ft | on 10-07-1986 |
| 71. | 29.00 ft | on 05-22-1986 |
| 72. | 26.60 ft | on 12-12-1985 |
| 73. | 28.10 ft | on 10-14-1985 |
| 74. | 29.00 ft | on 06-19-1985 |
| 75. | 34.00 ft | on 02-26-1985 |
| 76. | 26.50 ft | on 11-03-1984 |
| 77. | 31.80 ft | on 04-23-1984 |
| 78. | 33.90 ft | on 05-04-1983 |
| 79. | 33.90 ft | on 12-07-1982 |
| 80. | 31.50 ft | on 06-12-1982 |
| 81. | 26.30 ft | on 02-24-1982 |
| 82. | 30.20 ft | on 05-21-1981 |
| 83. | 31.60 ft | on 04-13-1979 |
| 84. | 33.20 ft | on 03-27-1978 |
| 85. | 32.00 ft | on 04-28-1976 |
| 86. | 36.40 ft | on 04-26-1973 |
| 87. | 33.60 ft | on 06-30-1967 |
| 88. | 33.20 ft | on 05-12-1961 |
| 89. | 32.20 ft | on 04-08-1960 |
| 90. | 32.60 ft | on 07-25-1958 |
| 91. | 31.80 ft | on 04-29-1952 |
| 92. | 37.30 ft | on 07-20-1951 |
| 93. | 35.40 ft | on 07-01-1947 |
| 94. | 33.00 ft | on 04-21-1945 |
| 95. | 36.50 ft | on 04-29-1944 |
| 96. | 36.60 ft | on 05-22-1943 |
| 97. | 34.80 ft | on 06-29-1942 |
| 98. | 35.20 ft | on 06-08-1935 |
| 99. | 33.00 ft | on 04-24-1927 |
| 100. | 36.80 ft | on 06-07-1903 |
| 101. | 40.11 ft | on 06-24-1844 |
Historic Crests
| 1. | 40.11 ft | on 06-24-1844 |
| 2. | 40.04 ft | on 08-02-1993 |
| 3. | 37.50 ft | on 10-07-1986 |
| 4. | 37.30 ft | on 07-20-1951 |
| 5. | 36.80 ft | on 06-07-1903 |
Historic Crests
| 1. | 40.11 ft | on 06-24-1844 |
| 2. | 40.04 ft | on 08-02-1993 |
| 3. | 37.50 ft | on 10-07-1986 |
| 4. | 37.30 ft | on 07-20-1951 |
| 5. | 36.80 ft | on 06-07-1903 |
| 6. | 36.60 ft | on 05-22-1943 |
| 7. | 36.50 ft | on 05-21-1995 |
| 8. | 36.50 ft | on 04-29-1944 |
| 9. | 36.40 ft | on 04-26-1973 |
| 10. | 35.91 ft | on 05-05-2017 |
| 11. | 35.59 ft | on 06-09-2019 |
| 12. | 35.40 ft | on 07-01-1947 |
| 13. | 35.40 ft | on 04-15-1994 |
| 14. | 35.20 ft | on 06-08-1935 |
| 15. | 35.11 ft | on 12-31-2015 |
| 16. | 34.80 ft | on 06-29-1942 |
| 17. | 34.60 ft | on 05-19-1990 |
| 18. | 34.00 ft | on 02-26-1985 |
| 19. | 33.90 ft | on 12-07-1982 |
| 20. | 33.90 ft | on 05-04-1983 |
| 21. | 33.81 ft | on 06-03-2013 |
| 22. | 33.60 ft | on 06-30-1967 |
| 23. | 33.20 ft | on 03-27-1978 |
| 24. | 33.20 ft | on 05-12-1961 |
| 25. | 33.00 ft | on 04-21-1945 |
| 26. | 33.00 ft | on 04-24-1927 |
| 27. | 32.60 ft | on 07-25-1958 |
| 28. | 32.20 ft | on 04-08-1960 |
| 29. | 32.00 ft | on 04-28-1976 |
| 30. | 31.82 ft | on 09-17-2008 |
| 31. | 31.80 ft | on 04-23-1984 |
| 32. | 31.80 ft | on 04-29-1952 |
| 33. | 31.70 ft | on 05-15-2002 |
| 34. | 31.60 ft | on 04-13-1979 |
| 35. | 31.50 ft | on 06-12-1982 |
| 36. | 30.59 ft | on 04-01-2019 |
| 37. | 30.50 ft | on 06-10-2001 |
| 38. | 30.22 ft | on 05-19-2010 |
| 39. | 30.20 ft | on 05-21-1981 |
| 40. | 30.00 ft | on 10-09-1998 |
| 41. | 29.60 ft | on 06-02-1996 |
| 42. | 29.47 ft | on 06-19-2008 |
| 43. | 29.38 ft | on 06-22-2010 |
| 44. | 29.36 ft | on 05-13-2007 |
| 45. | 29.21 ft | on 06-29-2021 |
| 46. | 29.09 ft | on 03-20-2021 |
| 47. | 29.00 ft | on 04-05-1998 |
| 48. | 29.00 ft | on 06-19-1985 |
| 49. | 29.00 ft | on 05-22-1986 |
| 50. | 28.99 ft | on 07-02-2008 |
| 51. | 28.80 ft | on 02-27-1997 |
| 52. | 28.60 ft | on 06-19-2009 |
| 53. | 28.30 ft | on 04-16-1997 |
| 54. | 28.28 ft | on 07-10-2010 |
| 55. | 28.19 ft | on 05-02-2009 |
| 56. | 28.14 ft | on 05-28-2011 |
| 57. | 28.10 ft | on 10-14-1985 |
| 58. | 28.03 ft | on 01-12-2020 |
| 59. | 28.03 ft | on 07-04-2011 |
| 60. | 27.95 ft | on 05-31-2020 |
| 61. | 27.88 ft | on 10-12-2019 |
| 62. | 27.72 ft | on 12-19-2015 |
| 63. | 27.61 ft | on 05-01-2024 |
| 64. | 27.47 ft | on 03-20-2008 |
| 65. | 27.36 ft | on 04-20-2013 |
| 66. | 27.32 ft | on 08-01-2008 |
| 67. | 27.30 ft | on 04-17-1987 |
| 68. | 27.11 ft | on 03-21-2020 |
| 69. | 27.10 ft | on 11-01-2009 |
| 70. | 27.09 ft | on 01-06-2005 |
| 71. | 27.01 ft | on 04-12-2008 |
| 72. | 26.84 ft | on 05-06-2022 |
| 73. | 26.83 ft | on 08-26-2019 |
| 74. | 26.71 ft | on 09-25-2010 |
| 75. | 26.70 ft | on 10-15-2018 |
| 76. | 26.69 ft | on 06-01-2016 |
| 77. | 26.67 ft | on 03-29-2010 |
| 78. | 26.60 ft | on 12-12-1985 |
| 79. | 26.57 ft | on 09-03-2019 |
| 80. | 26.50 ft | on 11-03-1984 |
| 81. | 26.43 ft | on 04-28-2010 |
| 82. | 26.42 ft | on 04-13-2021 |
| 83. | 26.32 ft | on 05-25-2017 |
| 84. | 26.30 ft | on 02-24-1982 |
| 85. | 26.27 ft | on 04-30-2011 |
| 86. | 26.06 ft | on 05-23-2011 |
| 87. | 25.90 ft | on 02-28-2001 |
| 88. | 25.88 ft | on 06-07-2020 |
| 89. | 25.56 ft | on 05-01-2016 |
| 90. | 25.53 ft | on 03-17-2010 |
| 91. | 25.49 ft | on 08-26-2011 |
| 92. | 25.27 ft | on 06-04-2022 |
| 93. | 25.18 ft | on 07-24-2010 |
| 94. | 25.13 ft | on 01-01-2019 |
| 95. | 25.11 ft | on 10-10-2009 |
| 96. | 25.09 ft | on 04-08-2017 |
| 97. | 25.04 ft | on 06-07-2008 |
| 98. | 25.01 ft | on 08-22-2019 |
| 99. | 24.89 ft | on 03-07-2004 |
| 100. | 21.24 ft | on 05-12-2003 |
| 101. | 21.15 ft | on 06-28-2000 |
Low Water Records
| 1. | 3.20 ft | on 12-24-1963 |
| 2. | 3.45 ft | on 12-26-1879 |
| 3. | 4.03 ft | on 11-28-2006 |
| 4. | 4.17 ft | on 12-15-2005 |
| 5. | 4.18 ft | on 01-01-2023 |
Low Water Records
| 1. | 3.20 ft | on 12-24-1963 |
| 2. | 3.45 ft | on 12-26-1879 |
| 3. | 4.03 ft | on 11-28-2006 |
| 4. | 4.17 ft | on 12-15-2005 |
| 5. | 4.18 ft | on 01-01-2023 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 449.47 ft |
| moderate Flooding | 443.47 ft |
| minor Flooding | 438.47 ft |
| action | 436.47 ft |
| Latest Value | 430.94 ft |
| Gauge Zero | 413.47 ft |
Unique Local Info
Collaborative Agencies
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
Resources
Hydrologic Resource Links
Additional Resource Links
WFO Information
Weather Forecast Office
St. Louis
12 Missouri Research Park Drive
St. Charles, MO 63304
Official Homepage