Lake Conditions
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Lake levels

Lake Marion (Florida), FL

water level
66.40 ft
Condition
Above average for this time of year
7-day change
+0.51 ft
30-day change
+0.40 ft
1-year change
+0.18 ft

Reading as of 2026-10-12 | the U.S. Geological Survey

Since yesterday
-0.01 ft
7-day change
+0.51 ft
30-day change
+0.40 ft
1-year change
+0.18 ft
Record high
67.98 ft

In brief

Lake Marion (Florida) stood at 66.40 feet on Oct 12, 2026. That is higher than 74% of October readings since 2005.

Source: U.S. Geological Survey

Lake level timeline

65.565.866.266.566.8SEP 12SEP 17SEP 22SEP 27OCT 02OCT 07OCT 12HIGH 66.41LOW 65.8966.40 ft

Records and averages

Current level66.40 ft
Record high67.98 ft (2022-09-30)
Record low64.40 ft (2007-05-31)
Average of all readings65.80 ft
Data span21 years (7,605 readings)

Level schematic

64.2665.2266.1967.1668.12PUBLISHED HIGH 67.98 ft66.40 ftPUBLISHED LOW 64.40 ft

Frequently asked questions

Is Lake Marion (Florida) full right now?

As of 2026-10-12, Lake Marion (Florida) sits at 66.40 ft, which is above average for this time of year. Over the past 30 days the level has risen 0.40 ft.

What is the water level at Lake Marion (Florida) today?

The most recent reading at Lake Marion (Florida) is 66.40 ft (2026-10-12), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.

What is the highest Lake Marion (Florida) has ever been?

The highest level for Lake Marion (Florida) in our records is 67.98 ft on 2022-09-30. The lowest is 64.40 ft on 2007-05-31. Our record covers about 21 years of readings.

Is Lake Marion (Florida) low for this time of year?

Compared with every October in our records, the current level is higher than 74% of them, which we classify as above average for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

Why is Lake Marion (Florida) changing right now?

Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Lake Marion (Florida) has risen 0.40 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.

How much has Lake Marion (Florida) changed over the past year?

Lake Marion (Florida) is +0.18 ft compared with this date last year (66.40 ft today). The full-history chart above covers 21 years, with a record high of 67.98 ft and a record low of 64.40 ft.

Download and cite

Quote this reading

Lake Marion (Florida) stood at 66.40 feet on Oct 12, 2026. That is higher than 74% of October readings since 2005.

From the U.S. Geological Survey, updated daily. The sentence changes with every new reading, so quote it with its date.

Download the full record

lake-marion-florida-fl-water-level-history.csv

7,605 readings, Oct 1, 2005 to Oct 12, 2026. Daily readings. The longest gap since then is 23 days, from May 13, 2021. Columns: date, water_level_ft. 134 KB.

How to cite

MyWaterLevel, “Lake Marion (Florida) water level, 2005 to 2026,” data from U.S. Geological Survey, https://mywaterlevel.com/lake/fl/lake-marion-florida/, accessed Oct 13, 2026.

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Source: the U.S. Geological Survey. All Florida lake levels. Readings are provisional and may be revised. About our data and methods.