St Marys Lake near Callaway water level

Name: St Marys Lake near Callaway water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

Lake, St Marys Lake, Maryland, United States

Directions

Latest reading

Surface elevation

58.90ft Steady over the last 24 hours

Measured Oct 20, 2026, 02:05 PM EDT (1 hour ago)

Water level: 60.97 ft

History

7 days

Surface elevation

What this means

The U.S. Geological Survey reports St Marys Lake near Callaway at 58.90 ft. The agency publishes no normal range or warning level for this lake yet, so there is nothing to judge the number against.

The level has held steady over the past 24 hours. The 30-day range is 58.89 ft – 58.97 ft.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

Boating and fishing at St Marys Lake near Callaway

Use the recent trend to judge conditions. A fast rise or fall shows up at docks and beaches within days.

Conditions at the shore change with the level, so check with the agency that runs the lake before a trip.

Weather at the gauge

Rain in the last 3 days: 0.57 in.

20 Tue 65° 47° – Wind 14 mph

21 Wed 62° 48° – Wind 13 mph

22 Thu 66° 43° – Wind 11 mph

23 Fri 62° 49° – Wind 11 mph

24 Sat 62° 44° – Wind 7 mph

25 Sun 64° 45° – Wind 6 mph

26 Mon 67° 47° – Wind 7 mph

Forecast: Open-Meteo

Sunrise 07:20 AM Sunset 06:23 PM Daylight 11 hr, 2 min Waxing gibbous 71%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
St Marys River at Great MillsRiver gauge, St Marys River	1.54 ft	Below flood stage	−0.05 ft	1.8 mi
St Clements Creek near ClementsRiver gauge, St Clements Creek	−0.09 ft	Below flood stage	−0.11 ft	12 mi
Zekiah Swamp Run near NewtownRiver gauge, Zekiah Swamp Run	1.26 ft	Below flood stage	−0.21 ft	27 mi
Piscataway Creek near TappahannockRiver gauge, Piscataway Creek	6.8 cfs	Low	−0.2 cfs	33 mi
Mattawoman Creek near PomonkeyRiver gauge, Mattawoman Creek	2.37 ft	Below flood stage	−0.16 ft	37 mi
Piscataway Creek at PiscatawayRiver gauge, Piscataway Creek	2.41 ft	Below flood stage	−0.04 ft	39 mi
Chicamacomico River near SalemRiver gauge, Chicamacomico River	6.7 cfs	Normal	−0.5 cfs	40 mi
Western Branch at Upper MarlboroRiver gauge, Western Branch	1.87 ft	Below flood stage	−0.03 ft	40 mi

Questions and answers

Is St Marys Lake near Callaway really 58.90 ft deep?

No. 58.90 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of St Marys Lake near Callaway today?

On Oct 20, 2026, 02:05 PM EDT, the surface elevation was 58.90 ft. Steady over the last 24 hours.

Is St Marys Lake near Callaway rising or falling?

Steady over the last 24 hours.

Is the level of St Marys Lake near Callaway normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01661499 (Agency page)
Coordinates: 38.25278, -76.53347 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Surface elevation	58.90 ft	2026-10-20 18:05	Provisional
Water level	60.97 ft	2026-10-20 18:05	Provisional

Download

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How to cite

U.S. Geological Survey: St Marys Lake near Callaway (usgs:01661499). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/maryland/st-marys-lake-near-callaway

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer