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Columbia River at International Boundary water level

River gauge, Columbia River, Washington, United States

Directions

Right now

Normal for mid-October

Water level

99.51ft Up 0.31 ft over the last 24 hours

Flow
72,100 cfs
98 99 100

History

History
9598100ftOct 13Oct 14Oct 16Oct 17Oct 199598100ftOct 13Oct 16Oct 19
95100ftSep 20Sep 27Oct 4Oct 11Oct 1995100ftSep 20Oct 4Oct 19
100110ftOct 2025Jan 2026Apr 2026Jul 2026Oct 2026100110ftOct 2025Apr 2026Oct 2026
100110ftJanMarMayJulSepNov2026100110ftJanAprJulOct2026

20252026

Water level Normal range (10–90 %)

What this means

Water levels are unremarkable at Columbia River at International Boundary, where the gauge shows 99.51 ft.

The median for mid-October is 98.75 ft, based on 26 years of readings, so the river stage is 0.76 ft above typical. On the same day last year the reading was 94.89 ft, a difference of +4.62 ft.

It is on the way up, by 0.31 ft over the past 24 hours. The 30-day range is 93.67 ft – 100.30 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Compared with 26 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
98.75 ft0.76 ft above the median for this date
Normal for this date
97.00 ft – 100.63 ft8 years in 10 fall in this range (26 years of records)
Same day last year
94.89 ft+4.62 ft
Lowest and highest in 30 days
93.67 ft – 100.30 ft
Lowest and highest in 12 months
93.39 ft – 112.29 ft

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

Weather at the gauge

No rain in the last 3 days.

18 Sun 62° 34° – Wind 6 mph
19 Mon 67° 48° – Wind 6 mph
20 Tue 68° 44° – Wind 6 mph
21 Wed 69° 42° – Wind 4 mph
22 Thu 69° 42° – Wind 4 mph
23 Fri 57° 37° – Wind 6 mph
24 Sat 54° 32° 0.15 in, 32% Wind 4 mph

Forecast: Open-Meteo

Sunrise 07:18 AM Sunset 05:54 PM Daylight 10 hr, 37 min First quarter 55%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Pend Oreille River at International BoundaryRiver gauge, Pend Oreille River 14,200 cfs Very low ±0 13 mi
Boundary Powerplant Tw near Metaline FallsRiver gauge, Boundary Powerplant Tw 1,725.65 ft Normal ±0 13 mi
Columbia River at BirchbankRiver gauge, Columbia River 2.95 m Normal −0.01 m 21 km
Big Sheep Creek near RosslandRiver gauge, Big Sheep Creek 0.40 m Normal ±0 23 km
Salmo River near SalmoRiver gauge, Salmo River 0.49 m Low ±0 25 km
Pend Oreille River below Box Canyon near IoneRiver gauge, Pend Oreille River 87.38 ft Normal −3.55 ft 18 mi
Pend Oreille River at IoneRiver gauge, Pend Oreille River 2,031.65 ft Normal +0.03 ft 20 mi
Hidden Creek near the MouthRiver gauge, Hidden Creek 0.23 m Low ±0 39 km

Questions and answers

Is the Columbia River at International Boundary higher than last year?

Yes, it is 4.62 ft higher than on the same day last year, when the reading was 94.89 ft.

What is a normal level for the Columbia River at International Boundary in mid-October?

The median for mid-October is 98.75 ft. In 8 years out of 10 the reading falls between 97.00 ft and 100.63 ft, based on 26 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 Columbia River at International Boundary today?

On Oct 18, 2026, 08:00 PM PDT, the water level was 99.51 ft. Up 0.31 ft over the last 24 hours.

Is Columbia River at International Boundary rising or falling?

Up 0.31 ft over the last 24 hours. Up 5.14 ft over the last 7 days.

Is the level of Columbia River at International Boundary normal?

Normal for mid-October. Compared with 26 years of daily readings for this time of year.

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.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:12399500 (Agency page)
Coordinates
49.00075, -117.62942 (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 99.51 ft 2026-10-19 03:00 Provisional
Flow 72,100 cfs 2026-10-19 03:00 Provisional

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How to cite

U.S. Geological Survey: Columbia River at International Boundary (usgs:12399500). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/washington/columbia-river-at-international-boundary

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.