Lake levels › South Dakota

Belle Fourche Reservoir water level today

Lower than usual for this time of year

2,956.75ft

feet above sea level ·

vs normal for Oct 10−7.9 ft
24 hours−0.05 ft
7 days+0.3 ft
30 days+1.3 ft
vs a year ago−10.8 ft

Is Belle Fourche Reservoir low right now?

Belle Fourche Reservoir was at 2,956.75 ft on October 10, 2026. That is 7.95 ft below the typical level for October 10 — lower than in 9 of 10 past years. Over the past week the lake has been rising about 0.05 ft a day.

Last 12 monthsDaily level Normal range (10–90% of past years)
2,9542,9592,9652,9712,976NovDecJanFebMarAprMayJunJulAugSepOct

Belle Fourche Reservoir on Oct 10 in past years

20252,967.4−10.7
20242,961.0−4.3
20232,971.1−14.3
20222,963.5−6.7
20212,959.2−2.4
20202,964.5−7.8

Level on the same date each year, and how today compares.

Daily levels, last two weeks

DateLevel (ft)Change
Oct 102,956.77−0.03
Oct 92,956.80+0.05
Oct 82,956.75+0.06
Oct 72,956.69+0.06
Oct 62,956.63+0.05
Oct 52,956.58+0.04
Oct 42,956.54+0.11
Oct 32,956.43±0.00
Oct 22,956.43−0.05
Oct 12,956.48+0.07
Sep 302,956.41+0.05
Sep 292,956.36+0.05
Sep 282,956.31+0.06
Sep 272,956.25+0.14

Daily means of the operator's readings (midnight to midnight, local time).

About Belle Fourche Reservoir

10-year range
2,955.3 ft (September 13, 2026) to 4,210.7 ft (December 6, 2023)
Operated by
U.S. Army Corps of Engineers
Data
U.S. Army Corps of Engineers — NWDM district, BFR
Datum
LOCAL

Lakes near Belle Fourche Reservoir

Questions

Is Belle Fourche Reservoir low right now?

Belle Fourche Reservoir was at 2,956.75 ft on October 10, 2026. That is 7.95 ft below the typical level for October 10 — lower than in 9 of 10 past years. Over the past week the lake has been rising about 0.05 ft a day.

How often is the Belle Fourche Reservoir level updated?

The operator reports every 15 minutes to an hour. This page refreshes several times a day; the time of the latest reading is shown next to the level.

Where does this data come from?

U.S. Army Corps of Engineers (NWDM district, BFR). Readings are provisional and can be revised.