Upper Stillwater Reservoir

Name: Upper Stillwater Reservoir (Utah) water level
Creator: U.S. Bureau of Reclamation

Utah · Reclamation gauge

Grey bar: 12-month range 8,075.5–8,158.0 ft.

Water level · EGM96

8,121.61FT

Storage 17,457 acre-feet

The source publishes no % full figure.

7 days +10.99 ft30 days +13.82 ftvs last year −4.92 ft

Reading for Oct 23, 2026 · page refreshed Oct 25, 21:16 UTC
Source: U.S. Bureau of Reclamation (RISE)

Worth going today?This Afternoon

Windy or wet – use caution

Light wind, 62% chance of rain

Wind5 mph

Rain62%

Temp44°F

Level8,121.6 ft

This AfternoonRain And Snow Likely · 44°F
SSE 5 mph · rain 62%

TonightSlight Chance Rain And Snow then Partly Cloudy · 30°F
NNW 3 mph · rain 15%

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

30 days1 year

Field notes

On Oct 23, 2026, Upper Stillwater Reservoir was at 8,121.61 (EGM96) ft.

Reclamation reports storage of 17,457 acre-feet for the same day.

Over the past 7 days the lake has been rising (+10.99 ft), and it is +13.82 ft over 30 days.

Compared with a year ago (8,126.53 ft), the lake is 4.92 ft lower.

Readings come from the Bureau of Reclamation's daily reservoir data for Upper Stillwater Reservoir and Dam.

Lake facts

Storage (latest)	17,457 acre-feet
Gauge / station	Upper Stillwater Reservoir and Dam
Elevation datum	ft (EGM96)
Gauge location	40.5656, -110.7004

Nearby lakes

Moon Lake Reservoir10 mi E8,116.47 ft+6.20 ft Lost Lake15 mi NW9,894.57 ft+0.52 ft Trial Lake16 mi NW9,805.08 ft+0.78 ft Washington Lake16 mi NW9,980.21 ft+0.24 ft Currant Creek Reservoir25 mi SW7,676.65 ft−0.18 ft

Common questions

Is Upper Stillwater Reservoir rising or falling?

Over the last 7 days it changed +10.99 ft and over 30 days +13.82 ft.

How full is Upper Stillwater Reservoir?

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. 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.