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Bighorn River and BIA Canal near St. Xavier water level

Reservoir, Montana, United States

Directions

Normal for mid-October

Surface elevation

3,187.64ft Down 0.99 ft over the last 7 days

Water stored
2,150 acre‑ft
3,183 3,185 3,188

History

3,1833,1853,1883,190ftOct 10Oct 11Oct 12Oct 13Oct 153,1833,1853,1883,190ftOct 10Oct 12Oct 15
3,1803,1853,190ftSep 17Sep 24Oct 1Oct 8Oct 153,1803,1853,190ftSep 17Oct 1Oct 15
3,1803,1853,190ftOct 2025Jan 2026Apr 2026Jul 2026Oct 20263,1803,1853,190ftOct 2025Apr 2026Oct 2026
3,1753,1803,1853,190ftOct 2016Apr 2019Oct 2021Apr 2024Oct 20263,1753,1803,1853,190ftOct 2016Oct 2021Oct 2026
3,1753,1803,1853,190ftJanMarMayJulSepNov20263,1753,1803,1853,190ftJanAprJulOct2026

202120222023202420252026

Surface elevation Normal range (10–90 %)

What this means

The lake level at Bighorn River and BIA Canal near St. Xavier reads 3,187.64 ft, about where it usually sits at this time of year.

That puts it 0.52 ft above the median of 3,187.12 ft for mid-October, based on 36 years of readings. A year ago it stood at 3,187.62 ft (+0.02 ft).

It is still going down, by 0.99 ft over the past week. The 30-day range is 3,177.04 ft – 3,191.64 ft.

Many reservoirs reach their low point of the year in fall, before winter rain and snow start the refill.

Compared with 36 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
3,187.12 ft0.52 ft above the median for this date
Normal for this date
3,181.66 ft – 3,188.84 ft8 years in 10 fall in this range (36 years of records)
Same day last year
3,187.62 ft+0.02 ft
Lowest and highest in 30 days
3,177.04 ft – 3,191.64 ft
Lowest and highest in 12 months
3,177.04 ft – 3,191.96 ft

Boating and fishing at Bighorn River and BIA Canal near St. Xavier

A lake in its usual range is what most ramps, docks and swimming areas are built for.

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

Weather at the gauge

The forecast is not available right now.

Sunrise 07:30 AM Sunset 06:26 PM Daylight 10h 57m First quarter 34 %

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Bighorn R below Yellowtail Afterbay Dam near St. XavierRiver gauge, Bighorn R 60.88 ft No reference yet 0.0 mi
Bighorn Lake YellowtailReservoir 3,625.80 ft Normal 2.0 mi
Bighorn River at bridge, at St. XavierRiver gauge, Bighorn River 6.05 ft No reference yet 13 mi
Lodge Grass Cr above Willow Cr diversion, near Wyola MTRiver gauge, Lodge Grass Cr 1.57 ft No reference yet 20 mi
Bighorn River at Two Leggins Bridge, near HardinRiver gauge, Bighorn River 9.26 ft No reference yet 26 mi
Little Bighorn River at State Line near Wyola MTRiver gauge, Little Bighorn River 1.97 ft No reference yet 26 mi
Little Bighorn River near Crow Agency MTRiver gauge, Little Bighorn River 111 cfs Normal 28 mi
Little Bighorn River near Hardin MTRiver gauge, Little Bighorn River 2.64 ft Below flood stage 34 mi

Questions and answers

How does Bighorn River and BIA Canal near St. Xavier compare with last year?

It is 0.02 ft higher than on the same day last year, when the reading was 3,187.62 ft.

How often is Bighorn River and BIA Canal near St. Xavier updated?

Once a day. The source, U.S. Bureau of Reclamation, publishes a single daily value; the latest is from Oct 15, 2026.

What is the water level of Bighorn River and BIA Canal near St. Xavier today?

On Oct 15, 2026, the surface elevation was 3,187.64 ft. Down 0.99 ft over the last 7 days.

Is Bighorn River and BIA Canal near St. Xavier rising or falling?

Down 0.99 ft over the last 7 days.

Is the level of Bighorn River and BIA Canal near St. Xavier normal?

Normal for mid-October. Compared with 36 years of daily readings for this time of year.

How often is this data updated?

U.S. Bureau of Reclamation publishes a new reading once a day. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from U.S. Bureau of Reclamation, the official operator of this gauge, and are published under the Public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Bureau of Reclamation
Station code
usbr:276 (Agency page)
Coordinates
45.31670, -107.91800 (WGS84)
Update interval
once a day
Licence
Public domain. Data: U.S. Bureau of Reclamation (RISE), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Surface elevation elevation 3,187.64 ft 2026-10-15 06:00 Provisional
Water stored storage 2,150 acre‑ft 2026-10-15 06:00 Provisional

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How to cite

U.S. Bureau of Reclamation: Bighorn River and BIA Canal near St. Xavier (usbr:276). Accessed October 16, 2026 via Nivelmap, https://nivelmap.com/en/united-states/montana/bighorn-river-and-bia-canal-near-st-xavier

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