River stage
Last reported 2026-10-13 | NWS ARNM7
In brief
The Meramec River at Arnold, MO read 9.42 ft on Oct 13, 2026, 12.58 ft below action stage.
Source: National Weather Service gauge ARNM7
| Rank | Crest | Date |
|---|---|---|
| 1 | 47.26 ft | 2015-12-31 |
| 2 | 45.62 ft | 2017-05-03 |
| 3 | 45.30 ft | 1993-08-01 |
| 4 | 43.90 ft | 1982-12-06 |
| 5 | 42.35 ft | 2019-06-09 |
| 6 | 41.70 ft | 1994-04-14 |
| 7 | 41.10 ft | 1995-05-21 |
| 8 | 39.80 ft | 1983-05-04 |
Flood crests recorded at this gauge by the National Weather Service.
The boat ramp and fishing banks at Flamm City Access and the fishing banks at Arnold City Park are flooded near this height. At Flamm City Access, this height will vary with the Mississippi River flow.
Corisande Hills Road begins flooding at this height. Meramec Bottom Road between Hagemann Road and Highway 21 begins flooding.
Hawkins Road south of Meramec Bottom Road begins flooding.
St. Louis County closes the following roads at this height: Butler Hill west of Summerhedge Place, Meramec Bottom Road between Hagemann Road and Highway 21, Hawkins Road south of Meramec Bottom Road, and Old Telegraph Road at Earl Widman County Park.
Athletic fields east of I-55 begin flooding near this height.
Meramec Bottom Road between Wells Road and Kerth Road begins flooding near this height.
Wells Road below Suson Woods begins flooding at this height.
Near this height, Old Baumgartner Road near Brookstone Terrace Drive begins flooding.
Near this height, New Baumgartner Road in front of the Fred Weber Quarry begins flooding.
Near this height, Old Baumgartner Road begins flooding near the Mattese Creek bridge.
Written by the local National Weather Service forecast office for this exact gauge.
No. The Meramec River at Arnold is at 9.42 ft, 12.58 ft below action stage.
The National Weather Service sets action stage 22 ft, minor flooding 24 ft, moderate flooding 35 ft and major flooding 38 ft.
The highest crest on record is 47.26 ft, on 2015-12-31.
Stage and flood information from the NOAA National Weather Service (gauge ARNM7); daily history from the U.S. Geological Survey (site 07019300). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.