Lewiston Lake

Name: Lewiston Lake (California) water level
Creator: U.S. Bureau of Reclamation

California · Reclamation gauge

Grey bar: 12-month range 1,900.2–1,901.8 ft.

Water level · NAVD88

1,901.10FT

Storage 13,986 acre-feet

The source publishes no % full figure.

7 days +0.03 ft30 days −0.36 ftvs last year +0.41 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

Wind3 mph

Rain0%

Temp65°F

Level1,901.1 ft

This AfternoonPartly Sunny · 65°F
SE 3 mph · rain 0%

TonightPartly Cloudy · 39°F
S 1 to 6 mph · rain 6%

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

Lewiston Lake's latest daily level (Oct 24, 2026) is 1,901.10 (NAVD88) ft.

Reclamation reports storage of 13,986 acre-feet for the same day.

The level has been roughly steady over the past week (+0.03 ft).

Compared with a year ago (1,900.69 ft), the lake is 0.41 ft higher.

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

Lake facts

Storage (latest)	13,986 acre-feet
Gauge / station	Lewiston Lake Dam and Powerplant
Elevation datum	ft (NAVD88)
Gauge location	40.7270, -122.7930

Nearby lakes

Trinity Lake5 mi N2,314.69 ft−0.65 ft Whiskeytown Lake16 mi SE1,206.93 ft−1.77 ft Spring Creek Reservoir18 mi E731.03 ft+0.74 ft Shasta Lake20 mi E974.61 ft−2.30 ft Keswick Reservoir20 mi SE583.25 ft−0.11 ft

Common questions

Is Lewiston Lake rising or falling?

Over the last 7 days it changed +0.03 ft and over 30 days −0.36 ft.

How full is Lewiston Lake?

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.