States

Lake Elwell

Montana · Reclamation gauge
2,9802,9852,9902,995
Grey bar: 12-month range 2,979.8–2,993.7 ft.
Water level · Unknown
2,987.05FT
Storage 816,805 acre-feet
The source publishes no % full figure.
7 days −0.26 ft30 days −1.18 ft
Reading for Oct 24, 2026 · page refreshed Oct 25, 20:24 UTC
Source: U.S. Bureau of Reclamation (RISE)
Worth going today?This Afternoon
Looks good
Light wind, dry
Wind9 mph
Rain0%
Temp44°F
Level2,987.1 ft
This AfternoonMostly Sunny · 44°F
E 9 mph · rain 0%
TonightMostly Cloudy then Patchy Fog · 24°F
E 5 to 8 mph · rain 0%
NWS forecast for the gauge location. Good = wind ≤ 10 mph and rain ≤ 30%; storms are flagged. Not safety advice – check local conditions, closures and warnings.

Level history

2,987.02,987.52,988.02,988.5ftSep 24Oct 2Oct 9Oct 16Oct 24
2,987.02,987.52,988.02,988.5ftSep 24Oct 9Oct 24
2,9802,9852,9902,995ftDec 2025Mar 2026May 2026Aug 2026Oct 2026
2,9802,9852,9902,995ftDec 2025May 2026Oct 2026

Field notes

On Oct 24, 2026, Lake Elwell was at 2,987.05 (Unknown) ft.

Reclamation reports storage of 816,805 acre-feet for the same day.

Over the past 7 days the lake has been falling (−0.26 ft), and it is −1.18 ft over 30 days.

Readings come from the Bureau of Reclamation's daily reservoir data for Lake Elwell and Tiber Dam.

Lake facts

Storage (latest)816,805 acre-feet
Gauge / stationLake Elwell and Tiber Dam
Elevation datumft (Unknown)
Gauge location48.3183, -111.0908

Nearby lakes

Fresno Reservoir56 mi E2,566.93 ft+0.03 ftPishkun Reservoir79 mi SW4,349.24 ft±0.00 ftWillow Creek Reservoir82 mi SW4,130.25 ft+1.12 ftGibson Reservoir92 mi SW4,611.30 ft−1.47 ftLake Sherburne117 mi W4,745.45 ft+0.70 ft

Common questions

Is Lake Elwell rising or falling?

Over the last 7 days it changed −0.26 ft and over 30 days −1.18 ft.

How full is Lake Elwell?

Reclamation publishes the water surface elevation for this gauge but not a percent-full figure, so we don't show one rather than estimate it.

How often is this page updated?

The page is rebuilt automatically every day from Reclamation's published data. Values can be revised later by the source agency.

Where does the data come from?

The U.S. Bureau of Reclamation's RISE data portal (data.usbr.gov). Forecasts come from the National Weather Service.

Daily values published by the Bureau of Reclamation; provisional and subject to revision. Reclamation data are provisional and subject to revision unless otherwise noted. This page is not affiliated with or endorsed by the Bureau of Reclamation. See data sources.