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Pishkun Reservoir and Dikes water level

Reservoir, Montana, United States

Directions

Low for mid-October

Surface elevation

4,349.24ft Steady over the last 7 days

Water stored
21,725 acre‑ft
4,350 4,360

History

4,3504,360ftOct 14Oct 15Oct 16Oct 17Oct 194,3504,360ftOct 14Oct 16Oct 19
4,3504,360ftSep 21Sep 28Oct 5Oct 12Oct 194,3504,360ftSep 21Oct 5Oct 19
4,3504,3604,370ftOct 2025Jan 2026Apr 2026Jul 2026Oct 20264,3504,3604,370ftOct 2025Apr 2026Oct 2026
4,3504,3604,370ftOct 2016Apr 2019Oct 2021Apr 2024Oct 20264,3504,3604,370ftOct 2016Oct 2021Sep 2026
4,3504,3604,370ftJanMarMayJulSepNov20264,3504,3604,370ftJanAprJulOct2026

202120222023202420252026

Surface elevation Normal range (10–90 %)

What this means

Water is short at Pishkun Reservoir and Dikes: the latest reading of 4,349.24 ft is below normal for mid-October.

The median for mid-October is 4,361.96 ft, based on 36 years of readings, so the lake level is 12.72 ft below typical. On the same day last year the reading was 4,356.49 ft, a difference of −7.25 ft.

It has barely moved over the past week. The 30-day range is 4,346.02 ft – 4,351.53 ft.

Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.

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

Key numbers

Median for this date
4,361.96 ft12.72 ft below the median for this date
Normal for this date
4,344.40 ft – 4,363.23 ft8 years in 10 fall in this range (36 years of records)
Same day last year
4,356.49 ft−7.25 ft
Lowest and highest in 30 days
4,346.02 ft – 4,351.53 ft
Lowest and highest in 12 months
4,349.24 ft – 4,370.04 ft

Boating and fishing at Pishkun Reservoir and Dikes

At low levels, launching can mean a long walk or a closed ramp, and shallow points stick out further than charts suggest.

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

Weather at the gauge

No rain in the last 3 days.

19 Mon 67° 34° – Wind 10 mph
20 Tue 53° 39° – Wind 11 mph
21 Wed 66° 36° – Wind 8 mph
22 Thu 69° 50° 0.01 in, 25% Wind 9 mph
23 Fri 55° 34° 0.12 in, 75% Wind 19 mph
24 Sat 50° 30° 0.01 in, 53% Wind 13 mph
25 Sun 40° 27° – Wind 8 mph

Forecast: Open-Meteo

Sunrise 07:57 AM Sunset 06:34 PM Daylight 10 hr, 37 min Waxing gibbous 72%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Willow Creek ReservoirReservoir 4,129.41 ft Normal 10 mi
Sun River below Diversion Dam near Augusta MTRiver gauge, Sun River 211 cfs Normal −3.0 cfs 10 mi
Sun River below Willow Cr near Augusta MTRiver gauge, Sun River 214 cfs High ±0 11 mi
Gibson ReservoirReservoir 4,612.24 ft Low 13 mi
Teton River below South Fork near Choteau MTRiver gauge, Teton River 4.34 ft Below flood stage ±0 15 mi
North Fork Sun River near Augusta MTRiver gauge, North Fork Sun River 3.40 ft Below flood stage −0.01 ft 17 mi
South Fork Sun River near Augusta MTRiver gauge, South Fork Sun River 90.5 cfs Normal −1.6 cfs 17 mi
Sun River at Simms MTRiver gauge, Sun River 2.84 ft Below flood stage −0.01 ft 29 mi

Questions and answers

Is Pishkun Reservoir and Dikes higher than last year?

No, it is 7.25 ft lower than on the same day last year, when the reading was 4,356.49 ft.

What is a normal level for Pishkun Reservoir and Dikes in mid-October?

The median for mid-October is 4,361.96 ft. In 8 years out of 10 the reading falls between 4,344.40 ft and 4,363.23 ft, based on 36 years of records.

Is Pishkun Reservoir and Dikes really 4,349.24 ft deep?

No. 4,349.24 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 Pishkun Reservoir and Dikes today?

On Oct 19, 2026, the surface elevation was 4,349.24 ft. Steady over the last 7 days.

Is Pishkun Reservoir and Dikes rising or falling?

Steady over the last 7 days.

Is the level of Pishkun Reservoir and Dikes normal?

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

How often is this data updated?

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

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Bureau of Reclamation
Station code
usbr:443 (Agency page)
Coordinates
47.67670, -112.49670 (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 4,349.24 ft 2026-10-19 06:00 Provisional
Water stored 21,725 acre‑ft 2026-10-19 06:00 Provisional

Download

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How to cite

U.S. Bureau of Reclamation: Pishkun Reservoir and Dikes (usbr:443). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/montana/pishkun-reservoir-and-dikes

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