Horsetooth Reservoir lake and shoreline

Horsetooth Reservoir Water Level

Colorado

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Horsetooth Reservoir is currently 21.2 feet below full pool, with a water-surface elevation of 5407.8 feet.

5407.81 ft · Updated 1 day ago · U.S. Bureau of Reclamation (USBR)

Current level

5,407.81ft

−21.19 ft vs full pool

Low

Vs full pool

Since last reading

Up 0.19 ft

Previous readingSep 85,407.62 ft

7-day change

Up 0.63 ft

7-day trend: Rising

4 daily readings in the last 7 days

30-day change

Up 0.63 ft

4 daily readings in the last 30 days

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Water Level History

Elevation (ft) MSL

5410 ft5418 ft5426 ftFULL POOL 5429.00 ftSep 7Sep 10

Level status

21.19 ft below full pool

Current level
5,407.81 ft
Full pool
5,429 ft
DatumVertical reference for published pool and stage elevations at this lake (from the lake catalog).
Not available
Elevation reference
MSL
Source
U.S. Bureau of Reclamation (USBR)

Reference levels

  • Full pool5,429 ft

Watershed drought

Severe Drought

100% of watershed in official drought (D1+).

Severity

NoneExtreme
Trend
Stable

Watershed drought conditions

Larimer County, CO

Severe Drought

Severe Drought. Severe drought conditions are present.. Trend: Stable compared with last week. Official drought yes

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought

Yes

100% of the watershed is currently classified as official drought (D1+).

Expected impacts

  • Lower stream inflows
  • Lake levels may decline faster
  • Vegetation is becoming drier
  • Minor increase in wildfire risk

U.S. Drought Monitor · map date Sep 8, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Larimer County, CO

Daily level summary

  • Sep 9, 2026

    5,407.81 ft

    +0.19 ft

  • Sep 8, 2026

    5,407.62 ft

    +0.22 ft

  • Sep 7, 2026

    5,407.4 ft

    +0.22 ft

  • Sep 6, 2026

    5,407.18 ft

    —

Common questions about Horsetooth Reservoir’s water level

  • The current water level at Horsetooth Reservoir is 5,407.81 ft (updated 1 day ago). You can track the Horsetooth Reservoir lake level on the interactive chart and daily history above.

  • Full pool for Horsetooth Reservoir is 5,429 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Horsetooth Reservoir lake level is rising — rising about 0.63 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Horsetooth Reservoir is currently 21.19 ft below full pool.

Lake level glossary

Definitions for pool targets, datums, and how elevation readings are labeled.

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