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Atascosa River near McCoy water level

River gauge, Atascosa River, Texas, United States

Directions

Right now

Very low for mid-October

Water level

4.58ft Steady over the last 24 hours

Flow
0.0 cfs
10 20 Highest onrecord 25.76 ft

History

History
468ftOct 13Oct 14Oct 16Oct 17Oct 19468ftOct 13Oct 16Oct 19
46810ftSep 20Sep 27Oct 4Oct 11Oct 1946810ftSep 20Oct 4Oct 19
51015ftOct 2025Jan 2026Apr 2026Jul 2026Oct 202651015ftOct 2025Apr 2026Oct 2026
51015ftJanMarMayJulSepNov202651015ftJanAprJulOct2026

20252026

Water level Normal range (10–90 %)

What this means

At 4.58 ft, the Atascosa River near McCoy is far below normal for mid-October.

That puts it 0.51 ft below the median of 5.10 ft for mid-October, based on 24 years of readings. A year ago it stood at 4.51 ft (+0.07 ft).

The level has held steady over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. Over the past 30 days it has moved between 4.57 ft and 5.36 ft.

Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.

Compared with 24 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
5.10 ft0.51 ft below the median for this date
Normal for this date
4.61 ft – 6.36 ft8 years in 10 fall in this range (24 years of records)
Same day last year
4.51 ft+0.07 ft
Lowest and highest in 30 days
4.57 ft – 5.36 ft
Lowest and highest in 12 months
4.51 ft – 15.14 ft
Highest on record
25.76 ftMay 16, 2015

What the stage means on the water

Low water means more dragging on shallow riffles and slower floats. Fish crowd into the deeper runs, and warm, low water stresses them, so play and release them quickly.

Highest crests on record

RankLevelDate
125.76 ftMay 16, 2015
224.41 ftOctober 26, 2002
323.61 ftMay 27, 2014

Weather at the gauge

No rain in the last 3 days.

17 Sat 70° 53° – Wind 20 mph
18 Sun 74° 47° – Wind 7 mph
19 Mon 78° 54° – Wind 11 mph
20 Tue 86° 65° – Wind 10 mph
21 Wed 81° 67° 0.00 in Wind 11 mph
22 Thu 87° 65° – Wind 10 mph
23 Fri 87° 63° – Wind 14 mph

Forecast: Open-Meteo

Sunrise 07:37 AM Sunset 07:00 PM Daylight 11 hr, 23 min First quarter 54%

Map

Other gauges on the Atascosa River

Gauge Level Compared with normal 24 hours Distance
Atascosa River at FM 476 near PleasantonRiver gauge, Atascosa River 6.06 ft No reference yet −7.11 ft 14 mi
Atascosa River at WhitsettRiver gauge, Atascosa River 1.65 ft Low −0.03 ft 17 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
San Antonio River near Falls CityRiver gauge, San Antonio River 0.87 ft Low −0.01 ft 18 mi
San Antonio River near FloresvilleRiver gauge, San Antonio River 3.66 ft Very low −0.07 ft 20 mi
San Miguel Creek near TildenRiver gauge, San Miguel Creek 0.84 ft Very low ±0 23 mi
San Antonio River near ElmendorfRiver gauge, San Antonio River 9.14 ft Low +0.04 ft 25 mi
Cibolo Creek near Falls CityRiver gauge, Cibolo Creek 0.74 ft Low −0.02 ft 27 mi
Choke Canyon Reservoir OWC near Three RiversRiver gauge, Choke Canyon Reservoir OWC 4.37 ft Normal +0.01 ft 27 mi
Choke Canyon Reservoir near Three RiversReservoir, Choke Canyon Reservoir 190.69 ft Normal −0.03 ft 27 mi
Medina River at San AntonioRiver gauge, Medina River 3.08 ft Low ±0 29 mi

Questions and answers

How does the Atascosa River near McCoy compare with last year?

It is 0.07 ft higher than on the same day last year, when the reading was 4.51 ft.

What is a normal level for the Atascosa River near McCoy in mid-October?

The median for mid-October is 5.10 ft. In 8 years out of 10 the reading falls between 4.61 ft and 6.36 ft, based on 24 years of records.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Atascosa River near McCoy today?

On Oct 18, 2026, 07:15 PM CDT, the water level was 4.58 ft. Steady over the last 24 hours.

Is Atascosa River near McCoy rising or falling?

Steady over the last 24 hours. Steady over the last 7 days.

Is the level of Atascosa River near McCoy normal?

Very low for mid-October. Compared with 24 years of daily readings for this time of year.

What is the highest water level ever recorded at Atascosa River near McCoy?

The highest level on record is 25.76 ft on May 16, 2015.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:08207500 (Agency page)
Coordinates
28.86498, -98.33835 (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

ParameterLast valueTime (UTC)Quality
Water level 4.58 ft 2026-10-19 00:15 Provisional
Flow 0.0 cfs 2026-10-19 00:15 Provisional

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How to cite

U.S. Geological Survey: Atascosa River near McCoy (usgs:08207500). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/texas/atascosa-river-near-mccoy

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.