Grand River near Painesville — Water Level & Flow
USGS gauge 04212100 reports gage height, discharge and water temperature from Grand River near Painesville in OH. Big Buoy shows the latest reading with a 7-day hydrograph, alongside National Weather Service flood categories where they are published.
Latest reading
As of October 19, 2026 at 18:00 UTC, USGS gauge 04212100 on Grand River near Painesville recorded gage height 1.61 ft, discharge 28 cfs, and water temperature 51°F.
National Weather Service flood category: No Flooding.
Lake Erie Tributaries river levels — Grand River near Painesville is one of the gauges covered there.
Stage vs. flow — how to read a river gauge
Discharge (flow, in cubic feet per second) is comparable between gauges and is usually the better number for judging whether a river is up or down. Gage height is the water surface in feet above each gauge's own local datum, so it is local: the same 4 ft describes different rivers at two different gauges, and it is not the depth of the water. A gauge that reports nothing is shown as not reported — never as zero.
Frequently asked questions
- What is the water level on Grand River near Painesville?
- Gage height at Grand River near Painesville was 1.61 ft. Measured October 19, 2026 at 18:00 UTC at USGS gauge 04212100 (Grand River near Painesville OH). Gage height is the water surface above this gauge’s own local datum, not the depth of the river.
- What is the flow on Grand River near Painesville?
- Discharge at Grand River near Painesville was 28 cubic feet per second. Measured October 19, 2026 at 18:00 UTC at USGS gauge 04212100 (Grand River near Painesville OH). Discharge is comparable between gauges in a way gage height is not.
- What is the water temperature in Grand River near Painesville?
- Water temperature at Grand River near Painesville was 51°F. Measured October 19, 2026 at 18:00 UTC at USGS gauge 04212100 (Grand River near Painesville OH).
- Is Grand River near Painesville flooding?
- The National Weather Service flood category for Grand River near Painesville was “No Flooding”. Measured October 19, 2026 at 18:00 UTC at USGS gauge 04212100 (Grand River near Painesville OH). Flood categories are published by NOAA/NWS, not by Big Buoy.
- Where is USGS gauge 04212100?
- Grand River near Painesville OH (USGS 04212100) reports from 41.719°N, 81.228°W in OH.
- How often does USGS gauge 04212100 update?
- This station records about every 15 minutes and transmits hourly, so a reading can be up to an hour old when you see it. Readings past three times the reporting interval are shown as last reported rather than as current conditions.
Data: USGS National Water Information System. Flood categories: NOAA/National Weather Service.