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Moon Lake Water Level Today

Daily level, distance to full pool and history for Moon Lake, on the Lake Fork River in Utah.

Updated · Source: Bureau of ReclamationReclamation

Water level

8,127.21ft

msl · Daily reading for Nov 8, 2026

  • 9.79 ftbelow full pool (8,137.0 ft)
  • +0.48 ftin 24 h+4.44 ft in 7 days+26.01 ft in 30 days
8,0908,1008,1108,1208,1308,1408,1508,0908,1008,1108,1208,1308,1408,1508,0908,1008,1108,1208,1308,1408,150
  • Full pool
  • 1 yr ago

Is Moon Lake full?

No. Moon Lake is 9.79 ft below full pool (8,137.0 ft). It is 32.57 ft higher than a year ago (8,094.64 ft on Nov 8, 2025).

Moon Lake level history

Full pool 8,137.0 ft
View data table
DateLevel (ft)
Nov 8, 20268,127.21
Nov 7, 20268,126.73
Nov 6, 20268,126.22
Nov 5, 20268,125.68
Nov 4, 20268,125.09
Nov 3, 20268,124.42
Nov 2, 20268,123.66
Nov 1, 20268,122.77
Oct 31, 20268,121.61
Oct 30, 20268,120.86
Oct 29, 20268,120.22
Oct 28, 20268,119.62
Oct 27, 20268,118.95
Oct 26, 20268,118.21
Oct 25, 20268,117.42
Oct 24, 20268,116.47
Oct 23, 20268,115.45
Oct 22, 20268,113.93
Oct 21, 20268,113.06
Oct 20, 20268,112.38
Oct 19, 20268,111.70
Oct 18, 20268,111.01
Oct 17, 20268,110.27
Oct 16, 20268,109.47
Oct 15, 20268,108.60
Oct 14, 20268,107.66
Oct 13, 20268,106.54
Oct 12, 20268,105.01
Oct 11, 20268,102.87
Oct 10, 20268,101.47
Oct 9, 20268,101.20
  • Moon Lake level
  • Full pool 8,137.0 ft
  • Above full pool
Source: Reclamation · Daily readings since 1974

Moon Lake on Nov 8 in past years

Moon Lake water level on Nov 8 in past years
YearLevel (ft)vs todayvs full pool
2026today8,127.21—−9.79 ft
20258,094.64−32.57−42.36 ft
20248,098.66−28.55−38.34 ft
20238,123.82−3.39−13.18 ft
20228,111.10−16.11−25.90 ft
20218,106.04−21.17−30.96 ft
20208,092.75−34.46−44.25 ft
20198,117.30−9.91−19.70 ft
20188,092.09−35.12−44.91 ft
20178,112.79−14.42−24.21 ft
20168,108.35−18.86−28.65 ft

Today’s level is the highest for Nov 8 in records going back to 1981.

Lake facts

Full pool (conservation pool)
8,137.0 ft msl
Highest since 1974
8,138.60 ftApr 29, 2000
Lowest since 1974
8,068.19 ftSep 19, 2007
Data since
Oct 31, 1974
Dam
Moon Lake Damcompleted 1938
River
Lake Fork River
Owned by
Bureau of Reclamation
Dam location
Duchesne County
Gauge location
40.5745, −110.5067

Dam, river and owner from the National Inventory of Dams (USACE). Records cover Oct 31, 1974 to today (daily averages).

Moon Lake map and depth

  • Dam
  • Level gauge
Shoreline © OpenStreetMap contributors · Open the full map
Surface area
about 780 acresmeasured on the OpenStreetMap outline
Height of Moon Lake Dam
101 ftNational Inventory of Dams

The outline shows the mapped shoreline, not today’s water line: when the lake is low, the water stands back from it.

Weather on the lake

  1. Today57°FHighLow 35°FWNW 7 mphSunny
  2. Tonight35°FLowNNW 5–13 mphMostly Cloudy
  3. Tuesday54°FHighLow 32°FNW 6–13 mphMostly Sunny
  4. Wednesday56°FHighLow 33°FWNW 1–8 mphSunny
  5. Thursday56°FHighLow 33°FSW 1–5 mphSunny
  6. Friday51°FHighLow 32°FWSW 1–6 mphMostly Sunny
  7. Saturday49°FHighLow 32°FW 5 mphMostly Sunny

Forecast: National Weather Service for the dam area (40.57, −110.51). Wind speeds are forecasts, not measurements.

Nearby lakes

Quick answers

What is the full pool level of Moon Lake?
8,137.0 ft above mean sea level, the top of its conservation pool. Above it, water is released or flows over the spillway of Moon Lake Dam.
How much does Moon Lake need to be full?
Moon Lake needs 9.79 ft more water to reach full pool (8,137.0 ft), as of Nov 8, 2026.
Is Moon Lake rising or falling?
It is rising: +4.44 ft in the last 7 days and +0.48 ft in 24 hours, to 8,127.21 ft on Nov 8, 2026 (Bureau of Reclamation).
When was Moon Lake last full?
It was last at or above full pool (8,137.0 ft) on Jun 18, 2024. On Nov 8, 2026 it was 9.79 ft below.
What is the highest level in our data?
Moon Lake reached 8,138.60 ft on Apr 29, 2000. The lowest was 8,068.19 ft on Sep 19, 2007 (Reclamation data since 1974; older records are not in this data set).
How much has Moon Lake changed in the last year?
In the last 12 months it ranged from 8,093.04 ft (Jul 15, 2026) to 8,129.11 ft (May 15, 2026), a swing of 36.07 ft.
How often is this page updated?
This page is updated every day with the daily reading of the Bureau of Reclamation, which is usually published one or two days later. The last reading is from Nov 8, 2026.

Where this data comes from

Daily elevation from the Bureau of Reclamation (data.usbr.gov). Updated once a day. Weather from the National Weather Service. Dam details from the National Inventory of Dams.

Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.