Green Mountain Reservoir

Name: Green Mountain Reservoir (Colorado) water level
Creator: U.S. Bureau of Reclamation

Colorado · Reclamation gauge

Grey bar: 12-month range 7,825.3–7,892.1 ft.

Water level

7,825.27FT

Storage 14,554 acre-feet

The source publishes no % full figure.

7 days −1.74 ft30 days −6.00 ft

Reading for Oct 24, 2026 · page refreshed Oct 25, 21:16 UTC
Source: U.S. Bureau of Reclamation (RISE)

Worth going today?This Afternoon

Fair – check conditions

Light wind, 43% chance of rain

Wind6 mph

Rain43%

Temp53°F

Level7,825.3 ft

This AfternoonChance Rain Showers · 53°F
WNW 6 mph · rain 43%

TonightShowers And Thunderstorms · 31°F
W 3 mph · rain 75%

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 24, 2026, Green Mountain Reservoir was at 7,825.27 ft.

Reclamation reports storage of 14,554 acre-feet for the same day.

Over the past 7 days the lake has been falling (−1.74 ft), and it is −6.00 ft over 30 days.

We ignored 1 value(s) in the source series that look like placeholders or one-day spikes (for example 0 or 999.99, or a jump of more than 25 ft in a day); no values were filled in.

Readings come from the Bureau of Reclamation's daily reservoir data for Green Mountain Reservoir Dam and Powerplant.

Lake facts

Storage (latest)	14,554 acre-feet
Gauge / station	Green Mountain Reservoir Dam and Powerplant
Elevation datum	ft
Gauge location	39.8789, -106.3133

Nearby lakes

Wolford Mountain Reservoir17 mi N7,443.91 ft−0.31 ft Willow Creek Reservoir27 mi NE8,117.18 ft+0.33 ft Lake Granby31 mi NE8,234.87 ft−0.30 ft Shadow Mountain Lake34 mi NE8,366.65 ft−0.01 ft Grand Lake37 mi NE8,366.59 ft−0.02 ft

Common questions

Is Green Mountain Reservoir rising or falling?

Over the last 7 days it changed −1.74 ft and over 30 days −6.00 ft.

How full is Green Mountain 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.