LakeLevelData

Lake levels › South Carolina › Lake Thurmond

Lake Thurmond water level today

134.57 ft above sea level (October 20, 2026 at 4:00 AM). It is 195.10 ft below the Corps' guide curve target for today (329.67 ft). Lake Thurmond is rising steadily: up 0.73 ft in the past 7 days and down 1.55 ft over 30 days.

Level now134.57 ft
vs guide curve (329.7)−195.10 ft
Past 24 hours+0.60 ft
Past 7 days+0.73 ft
Past 30 days−1.55 ft
vs 1 year ago−6.88 ft

Lake Thurmond level over the last 12 months

117174231289346 Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26Oct 26
Daily elevation in feet, last 12 months; dashed orange line = Corps guide curve (target level).

12-month low: 132.94 ft (October 11, 2026). High: 142.24 ft (October 23, 2025). Swing: 9.30 ft.

Daily Lake Thurmond levels, last 30 days

DateElevation (ft)Change
Oct 20, 2026134.57+0.60 ft
Oct 19, 2026133.97+0.44 ft
Oct 18, 2026133.53−0.35 ft
Oct 17, 2026133.88+0.03 ft
Oct 16, 2026133.85+0.15 ft
Oct 15, 2026133.70+0.04 ft
Oct 14, 2026133.66−0.18 ft
Oct 13, 2026133.84+0.46 ft
Oct 12, 2026133.38+0.44 ft
Oct 11, 2026132.94−0.58 ft
Oct 10, 2026133.52−0.23 ft
Oct 9, 2026133.75−0.51 ft
Oct 8, 2026134.26−0.03 ft
Oct 7, 2026134.29−0.12 ft
Oct 6, 2026134.41−0.31 ft
Oct 5, 2026134.72−0.39 ft
Oct 4, 2026135.11−0.21 ft
Oct 3, 2026135.32−0.06 ft
Oct 2, 2026135.38+0.26 ft
Oct 1, 2026135.12+0.04 ft
Sep 30, 2026135.08−0.29 ft
Sep 29, 2026135.37−0.08 ft
Sep 28, 2026135.45+0.15 ft
Sep 27, 2026135.30+0.03 ft
Sep 26, 2026135.27−0.09 ft
Sep 25, 2026135.36−0.16 ft
Sep 24, 2026135.52−0.46 ft
Sep 23, 2026135.98−0.18 ft
Sep 22, 2026136.16−0.13 ft
Sep 21, 2026136.29+0.17 ft

Monthly average levels

MonthAverageLowHigh
Nov 2025139.91137.01141.91
Dec 2025137.29135.45138.71
Jan 2026136.37133.88137.64
Feb 2026138.49137.16139.76
Mar 2026138.91137.13140.10
Apr 2026138.54137.62140.48
May 2026137.68136.29140.65
Jun 2026139.18137.36140.87
Jul 2026138.22136.78139.46
Aug 2026136.58134.97137.49
Sep 2026135.87135.08137.02
Oct 2026 *134.16132.94135.38

* partial month or year.

Lake Thurmond year by year

YearLowHighAverage
2026 *132.94 Oct 11140.87 Jun 1137.50
2025135.45 Dec 9147.84 Apr 13142.60
2024131.78 Feb 3146.62 May 6142.52
2023 *136.31 Nov 28140.63 Oct 16138.40

Lake Thurmond on this date in past years

YearLevel on this dateToday vs then
2025141.45 ft−6.88 ft
2024143.25 ft−8.68 ft
2023140.08 ft−5.51 ft

Is Lake Thurmond full?

The Corps of Engineers manages Lake Thurmond to a seasonal guide curve rather than one fixed full level. Today's target is 329.67 ft and the lake is 195.10 ft below it.

Is Lake Thurmond rising or falling?

Lake Thurmond is rising steadily: up 0.73 ft in the past 7 days and down 1.55 ft over 30 days. In the latest day it moved +0.60 ft.

How does Lake Thurmond compare with last year?

Compared with the same date last year, the lake is 6.88 ft lower. Two years ago on this date it stood at 143.25 ft.

Data source

U.S. Army Corps of Engineers (USACE CWMS Data API), gauge Thurmond.Elev-Head.Inst.1Hour.0.Raw-SHEF_SAS; readings since Oct 15, 2023. Official source · how we collect it.

Other lakes in South Carolina

All South Carolina lake levels