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Arm of Grand Lake water level today

Lake in St. Martin Parish, Louisiana

2.88ft
0.88 m · NAVD88
Measured · provisional
Much below normal for the dateSteady
24 hours
▼ 0.01 ft
7 days
▼ 0.15 ft
30 days
▼ 0.29 ft
Normal for Oct 24 ?
6.22 ft

At a glance · Oct 24

Much lower than usual

Arm of Grand Lake is 3.3 ft lower than normal for Oct 24, lower than on this date in 6 of the last 7 years.

  • This week↘ Falling 0.15 ft
  • Lowest on record↓ 2.62 ft (2024)

Compared with this gauge's own records for the same date. A statistical guide, not advice.

Normal for Oct 24Record lowToday2.88 ft

Today compared with past years on Oct 24

Lowest to highest on this date: 2.67–12.05 ftUsual range (10th–90th percentile): 5.32–9.23 ftNormal (25th–75th percentile): 5.76–6.74 ftToday: 2.88 ftToday 2.88 ftMedian 6.22Lowest 2.67Highest 12.0525th75th
Lowest to highest on this date: 2.67–12.05 ftUsual range (10th–90th percentile): 5.32–9.23 ftNormal (25th–75th percentile): 5.76–6.74 ftToday: 2.88 ftToday 2.88 ftMedian 6.22Lowest 2.67Highest 12.0525th75th

Where today's reading sits among this gauge's own records for the same date (±3 days). A statistical guide, not advice.

What this means

It is lower than on Oct 24 in 6 of the last 7 years.

The lake has fallen 0.15 ft in 7 days and fallen 0.29 ft in 30 days.

Since 2003, the lowest daily level was 2.62 ft (Oct 2024) and the highest 19.92 ft (May 2011).

Arm of Grand Lake level chart

Loading chart…

Measured Normal range for the date (middle 50% of past years)

2026 compared with 2025

2691317JanFebMarAprMayJunJulAugSepOctNovDec202520262025-08-20: 4.61 ft2025-08-25: 4.38 ft2025-08-30: 4.21 ft2025-09-04: 4.00 ft2025-09-09: 3.81 ft2025-09-14: 3.65 ft2025-09-19: 3.57 ft2025-09-24: 3.54 ft2025-09-29: 3.50 ft2025-10-04: 3.38 ft2025-10-09: 3.39 ft2025-10-14: 3.23 ft2025-10-19: 3.11 ft2025-10-24: 3.00 ft2025-10-29: 3.31 ft2025-11-03: 3.20 ft2025-11-08: 3.10 ft2025-11-13: 2.98 ft2025-11-18: 2.92 ft2025-11-23: 2.86 ft2025-11-28: 2.84 ft2025-12-03: 2.89 ft2025-12-08: 3.60 ft2025-12-13: 3.53 ft2025-12-18: 3.53 ft2025-12-23: 3.48 ft2025-12-28: 3.43 ft2026-01-02: 3.40 ft2026-01-07: 3.36 ft2026-01-12: 3.77 ft2026-01-17: 3.68 ft2026-01-22: 3.63 ft2026-01-27: 4.09 ft2026-02-01: 3.95 ft2026-02-06: 3.93 ft2026-02-11: 3.81 ft2026-02-16: 3.86 ft2026-02-21: 3.79 ft2026-02-26: 3.69 ft2026-03-03: 3.63 ft2026-03-08: 3.77 ft2026-03-13: 4.00 ft2026-03-18: 4.54 ft2026-03-24: 6.28 ft2026-03-29: 6.79 ft2026-04-03: 6.07 ft2026-04-08: 5.29 ft2026-04-13: 4.86 ft2026-04-18: 5.07 ft2026-04-23: 5.23 ft2026-04-28: 5.26 ft2026-05-03: 5.76 ft2026-05-08: 5.98 ft2026-05-13: 6.75 ft2026-05-18: 6.40 ft2026-05-23: 5.87 ft2026-05-28: 5.41 ft2026-06-02: 5.51 ft2026-06-07: 6.58 ft2026-06-12: 6.94 ft2026-06-17: 6.34 ft2026-06-22: 6.58 ft2026-06-27: 6.76 ft2026-07-02: 7.31 ft2026-07-07: 7.58 ft2026-07-12: 7.64 ft2026-07-17: 7.31 ft2026-07-22: 6.40 ft2026-07-27: 5.86 ft2026-08-01: 5.15 ft2026-08-06: 4.73 ft2026-08-11: 4.40 ft2026-08-16: 4.12 ft2026-08-21: 3.72 ft2026-09-11: 3.67 ft2026-09-27: 3.05 ft2026-10-02: 2.85 ft2026-10-07: 3.04 ft2026-10-12: 3.10 ft2026-10-17: 3.07 ft
2691317JanAprJulOct202520262025-08-20: 4.61 ft2025-08-25: 4.38 ft2025-08-30: 4.21 ft2025-09-04: 4.00 ft2025-09-09: 3.81 ft2025-09-14: 3.65 ft2025-09-19: 3.57 ft2025-09-24: 3.54 ft2025-09-29: 3.50 ft2025-10-04: 3.38 ft2025-10-09: 3.39 ft2025-10-14: 3.23 ft2025-10-19: 3.11 ft2025-10-24: 3.00 ft2025-10-29: 3.31 ft2025-11-03: 3.20 ft2025-11-08: 3.10 ft2025-11-13: 2.98 ft2025-11-18: 2.92 ft2025-11-23: 2.86 ft2025-11-28: 2.84 ft2025-12-03: 2.89 ft2025-12-08: 3.60 ft2025-12-13: 3.53 ft2025-12-18: 3.53 ft2025-12-23: 3.48 ft2025-12-28: 3.43 ft2026-01-02: 3.40 ft2026-01-07: 3.36 ft2026-01-12: 3.77 ft2026-01-17: 3.68 ft2026-01-22: 3.63 ft2026-01-27: 4.09 ft2026-02-01: 3.95 ft2026-02-06: 3.93 ft2026-02-11: 3.81 ft2026-02-16: 3.86 ft2026-02-21: 3.79 ft2026-02-26: 3.69 ft2026-03-03: 3.63 ft2026-03-08: 3.77 ft2026-03-13: 4.00 ft2026-03-18: 4.54 ft2026-03-24: 6.28 ft2026-03-29: 6.79 ft2026-04-03: 6.07 ft2026-04-08: 5.29 ft2026-04-13: 4.86 ft2026-04-18: 5.07 ft2026-04-23: 5.23 ft2026-04-28: 5.26 ft2026-05-03: 5.76 ft2026-05-08: 5.98 ft2026-05-13: 6.75 ft2026-05-18: 6.40 ft2026-05-23: 5.87 ft2026-05-28: 5.41 ft2026-06-02: 5.51 ft2026-06-07: 6.58 ft2026-06-12: 6.94 ft2026-06-17: 6.34 ft2026-06-22: 6.58 ft2026-06-27: 6.76 ft2026-07-02: 7.31 ft2026-07-07: 7.58 ft2026-07-12: 7.64 ft2026-07-17: 7.31 ft2026-07-22: 6.40 ft2026-07-27: 5.86 ft2026-08-01: 5.15 ft2026-08-06: 4.73 ft2026-08-11: 4.40 ft2026-08-16: 4.12 ft2026-08-21: 3.72 ft2026-09-11: 3.67 ft2026-09-27: 3.05 ft2026-10-02: 2.85 ft2026-10-07: 3.04 ft2026-10-12: 3.10 ft2026-10-17: 3.07 ft
20262025Normal (middle 50% of past years)Usual range (10th–90th percentile)Median

Each year drawn on the same January–December axis, over this gauge's normal range for each date. Hover or tap a point for its value.

Same date in past years

DateLevelvs today
Oct 24, 20253.00 ft▲ 0.12 ft
Oct 24, 20242.77 ft▼ 0.11 ft
Oct 24, 20207.14 ft▲ 4.26 ft
Oct 24, 20199.11 ft▲ 6.23 ft
Oct 24, 201810.48 ft▲ 7.60 ft
Oct 24, 20176.20 ft▲ 3.32 ft
Oct 24, 20166.19 ft▲ 3.31 ft

Records & details

Highest
19.92 ft on May 28, 2011
Lowest
2.62 ft on Oct 29, 2024
Records from
2003 (24 years of daily data)
Water temperature
Not measured here

Full history: yearly highs and lows, monthly averages →

Weather & wind

Tonight56°F · Clear
Wind E 0 to 5 mph
Saturday80°F · Sunny
Wind E 5 to 10 mph
Saturday Night53°F · Clear
Wind E 0 to 5 mph
Sunday79°F · Sunny
Wind NE 5 to 10 mph
Sunday Night57°F · Partly Cloudy
Wind E 0 to 5 mph
Monday79°F · Mostly Sunny
Wind NE 5 mph

NOAA National Weather Service forecast for this lake's location, updated 1 h ago.

Nearby lakes

All Louisiana lake levels →