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Mountain Island Lake Water Level Today

Daily level, distance to full pool and history for Mountain Island Lake, on the Catawba River in North Carolina.

Updated · Source: NWS gauge MOUN7 Provisional

Water level Provisional

644.59ft

msl · 8:00 AM EST, Nov 9, 2026

  • 2.91 ftbelow full pool (647.5 ft)
  • −0.08 ftin 24 h+0.34 ft in 7 days+0.52 ft in 30 days
644646648650644646648650644646648650
  • Full pool
  • 1 yr ago

Is Mountain Island Lake full?

No. Mountain Island Lake is 2.91 ft below full pool (647.5 ft). It is 0.38 ft higher than a year ago (644.21 ft on Nov 9, 2025).

Mountain Island Lake level history

Full pool 647.5 ft
View data table
DateLevel (ft)
Nov 9, 2026644.59
Nov 8, 2026644.66
Nov 7, 2026644.69
Nov 6, 2026644.66
Nov 5, 2026644.61
Nov 4, 2026644.42
Nov 3, 2026644.34
Nov 2, 2026644.26
Nov 1, 2026644.19
Oct 31, 2026644.16
Oct 30, 2026644.09
Oct 29, 2026644.13
Oct 28, 2026644.10
Oct 27, 2026643.92
Oct 26, 2026644.04
Oct 25, 2026643.97
Oct 24, 2026643.93
Oct 23, 2026643.90
Oct 22, 2026643.86
Oct 21, 2026643.79
Oct 20, 2026643.71
Oct 19, 2026643.71
Oct 18, 2026643.72
Oct 17, 2026643.98
Oct 16, 2026645.12
Oct 15, 2026644.49
Oct 14, 2026644.55
Oct 13, 2026644.25
Oct 12, 2026644.44
Oct 11, 2026644.36
Oct 10, 2026644.07
  • Mountain Island Lake level
  • Full pool 647.5 ft
  • Above full pool
Source: NOAA NWPS · Daily averages since 2010

Mountain Island Lake on Nov 9 in past years

Mountain Island Lake water level on Nov 9 in past years
YearLevel (ft)vs todayvs full pool
2026today644.59—−2.91 ft
2025644.21−0.38−3.29 ft
2024643.98−0.61−3.52 ft
2023643.44−1.15−4.06 ft
2022643.95−0.64−3.55 ft
2021644.11−0.48−3.39 ft
2020645.89+1.30−1.61 ft
2019644.69+0.10−2.81 ft
2018646.49+1.90−1.01 ft
2017645.44+0.85−2.06 ft
2016644.30−0.29−3.20 ft

Today’s level is the highest for this date since 2020.

Lake facts

Full pool (conservation pool)
647.5 ft msl
Highest since 2010
654.43 ftSep 28, 2024
Lowest since 2010
642.59 ftJan 21, 2025
Data since
Dec 8, 2010
Dam
Mountain Island Damcompleted 1963
River
Catawba River
Operated by
Duke Energy
Dam location
Mecklenburg County
Gauge location
35.3338, −80.9868

Dam, river and owner from the National Inventory of Dams (USACE). Records cover Dec 8, 2010 to today (daily averages).

Weather on the lake

  1. Today72°FHighLow 39°FNW 3 mphSunny
  2. Tonight39°FLowCalmClear
  3. Tuesday72°FHighLow 42°FW 0–6 mphSunny
  4. Wednesday72°FHighLow 45°FESE 3 mphMostly Sunny
  5. Thursday68°FHighLow 40°FWSW 3–15 mphChance Light Rain
  6. Friday56°FHighLow 34°FWNW 12–18 mphMostly Sunny
  7. Saturday55°FHighLow 32°FWNW 7–15 mphSunny

Forecast: National Weather Service for the dam area (35.33, −80.99). Wind speeds are forecasts, not measurements.

Nearby lakes

Quick answers

What is the full pool level of Mountain Island Lake?
647.5 ft above mean sea level, the top of its conservation pool. Above it, water is released or flows over the spillway of Mountain Island Dam.
How much does Mountain Island Lake need to be full?
Mountain Island Lake needs 2.91 ft more water to reach full pool (647.5 ft), as of Nov 9, 2026.
Is Mountain Island Lake rising or falling?
It is rising: +0.34 ft in the last 7 days and −0.08 ft in 24 hours, to 644.59 ft on 8:00 AM EST, Nov 9, 2026 (NOAA National Water Prediction Service).
When was Mountain Island Lake last full?
It was last at or above full pool (647.5 ft) on Oct 3, 2024. On Nov 9, 2026 it was 2.91 ft below.
What is the highest level in our data?
Mountain Island Lake reached 654.43 ft on Sep 28, 2024. The lowest was 642.59 ft on Jan 21, 2025 (NOAA NWPS data since 2010; older records are not in this data set).
How much has Mountain Island Lake changed in the last year?
In the last 12 months it ranged from 643.05 ft (May 6, 2026) to 645.12 ft (Oct 16, 2026), a swing of 2.07 ft.
How often is this page updated?
This page is updated several times a day with the latest reading from NOAA National Water Prediction Service. The last reading is from 8:00 AM EST, Nov 9, 2026.

Where this data comes from

Lake level reported by Duke Energy through the National Weather Service (gauge MOUN7, water.noaa.gov); history from the Iowa Environmental Mesonet archive of the same reports. Recent readings are provisional. 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.