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Fresno Reservoir water level

Reservoir, Montana, United States

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Right now

High for mid-October

Surface elevation

2,566.89ft Steady over the last 7 days

Water stored
55,923 acre‑ft
2,550 2,560 2,570

History

History
2,5552,5602,5652,570ftOct 13Oct 14Oct 15Oct 16Oct 182,5552,5602,5652,570ftOct 13Oct 15Oct 18
2,5552,5602,5652,570ftSep 20Sep 27Oct 4Oct 11Oct 182,5552,5602,5652,570ftSep 20Oct 4Oct 18
2,5502,5602,570ftOct 2025Jan 2026Apr 2026Jul 2026Oct 20262,5502,5602,570ftOct 2025Apr 2026Oct 2026
2,5402,560ftOct 2016Apr 2019Oct 2021Apr 2024Oct 20262,5402,560ftOct 2016Oct 2021Oct 2026
2,5402,5502,5602,570ftJanMarMayJulSepNov20262,5402,5502,5602,570ftJanAprJulOct2026

202120222023202420252026

Surface elevation Normal range (10–90 %)

What this means

There is plenty of water in Fresno Reservoir: 2,566.89 ft, above normal for mid-October.

The median for mid-October is 2,562.27 ft, based on 36 years of readings, so the lake level is 4.62 ft above typical. On the same day last year the reading was 2,558.53 ft, a difference of +8.36 ft.

It has barely moved over the past week. Over the past 30 days it has moved between 2,564.27 ft and 2,566.92 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
2,562.27 ft4.62 ft above the median for this date
Normal for this date
2,551.91 ft – 2,568.81 ft8 years in 10 fall in this range (36 years of records)
Same day last year
2,558.53 ft+8.36 ft
Lowest and highest in 30 days
2,564.27 ft – 2,566.92 ft
Lowest and highest in 12 months
2,554.47 ft – 2,570.70 ft

Swimming and boating at Fresno Reservoir

A little more water than usual mostly means narrower beaches. Ramps and docks generally work as normal, but watch for floating debris after storms.

If you swim, pick a spot with an easy way out, and remember that drop-offs move as the level changes.

Weather at the gauge

No rain in the last 3 days.

19 Mon 63° 28° – Wind 8 mph
20 Tue 60° 33° – Wind 9 mph
21 Wed 69° 39° – Wind 11 mph
22 Thu 71° 51° – Wind 10 mph
23 Fri 59° 41° 0.16 in, 75% Wind 28 mph
24 Sat 49° 38° – Wind 21 mph
25 Sun 48° 32° – Wind 10 mph

Forecast: Open-Meteo

Sunrise 07:46 AM Sunset 06:24 PM Daylight 10 hr, 38 min First quarter 63%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Big Sandy Creek near Havre MTRiver gauge, Big Sandy Creek 2.35 ft Below flood stage ±0 7 mi
Big Sandy Cr above Spring Coulee, near LaredoRiver gauge, Big Sandy Cr 19.0 cfs High −1.1 cfs 11 mi
Milk River at Havre MTRiver gauge, Milk River 0.28 ft Below flood stage +0.02 ft 12 mi
Boxelder Creek at Box ElderRiver gauge, Boxelder Creek 5.7 cfs Normal +0.2 cfs 21 mi
Boxelder Creek near Rocky BoyRiver gauge, Boxelder Creek 8.9 cfs Normal ±0 22 mi
Clear Creek near Chinook MTRiver gauge, Clear Creek 3.28 ft Below flood stage +0.01 ft 25 mi
Lodge Creek below McRae Creek at International BoundaryRiver gauge, Lodge Creek 0.29 m Low ±0 47 km
Battle Creek near Chinook MTRiver gauge, Battle Creek 1.27 ft Below flood stage ±0 33 mi

Questions and answers

Is Fresno Reservoir higher than last year?

Yes, it is 8.36 ft higher than on the same day last year, when the reading was 2,558.53 ft.

What is a normal level for Fresno Reservoir in mid-October?

The median for mid-October is 2,562.27 ft. In 8 years out of 10 the reading falls between 2,551.91 ft and 2,568.81 ft, based on 36 years of records.

Is Fresno Reservoir really 2,566.89 ft deep?

No. 2,566.89 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 Fresno Reservoir today?

On Oct 18, 2026, the surface elevation was 2,566.89 ft. Steady over the last 7 days.

Is Fresno Reservoir rising or falling?

Steady over the last 7 days.

Is the level of Fresno Reservoir normal?

High 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:337 (Agency page)
Coordinates
48.60830, -109.94580 (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 2,566.89 ft 2026-10-18 06:00 Provisional
Water stored 55,923 acre‑ft 2026-10-18 06:00 Provisional

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How to cite

U.S. Bureau of Reclamation: Fresno Reservoir (usbr:337). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/montana/fresno-reservoir

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.