Horsetooth Reservoir Water Level Today
Daily level, distance to full pool and history for Horsetooth Reservoir, on the Offstream storage (Colorado-Big Thompson Project) in Colorado.
Updated · Source: Bureau of ReclamationReclamation
Water level
5,407.82ft
- 22.18 ftbelow full pool (5,430.0 ft)
- −0.03 ftin 24 h−0.21 ft in 7 days−4.27 ft in 30 days
- Full pool
- 1 yr ago
Is Horsetooth Reservoir full?
No. Horsetooth Reservoir is 22.18 ft below full pool (5,430.0 ft). It is 9.82 ft higher than a year ago (5,398.00 ft on Nov 7, 2025).
Horsetooth Reservoir level history
View data table
| Date | Level (ft) | % full |
|---|---|---|
| Nov 7, 2026 | 5,407.82 | — |
| Nov 6, 2026 | 5,407.85 | — |
| Nov 5, 2026 | 5,407.89 | — |
| Nov 4, 2026 | 5,407.90 | — |
| Nov 3, 2026 | 5,407.92 | — |
| Nov 2, 2026 | 5,407.93 | — |
| Nov 1, 2026 | 5,408.01 | — |
| Oct 31, 2026 | 5,408.03 | — |
| Oct 30, 2026 | 5,408.11 | — |
| Oct 29, 2026 | 5,408.22 | — |
| Oct 28, 2026 | 5,408.39 | — |
| Oct 27, 2026 | 5,408.79 | — |
| Oct 26, 2026 | 5,409.28 | — |
| Oct 25, 2026 | 5,409.91 | — |
| Oct 24, 2026 | 5,410.28 | — |
| Oct 23, 2026 | 5,410.73 | — |
| Oct 22, 2026 | 5,411.12 | — |
| Oct 21, 2026 | 5,411.51 | — |
| Oct 20, 2026 | 5,411.84 | — |
| Oct 19, 2026 | 5,411.94 | — |
| Oct 18, 2026 | 5,412.04 | — |
| Oct 17, 2026 | 5,412.01 | — |
| Oct 16, 2026 | 5,411.91 | — |
| Oct 15, 2026 | 5,411.81 | — |
| Oct 14, 2026 | 5,411.59 | — |
| Oct 13, 2026 | 5,411.41 | — |
| Oct 12, 2026 | 5,411.53 | — |
| Oct 11, 2026 | 5,411.68 | — |
| Oct 10, 2026 | 5,411.81 | — |
| Oct 9, 2026 | 5,411.93 | — |
| Oct 8, 2026 | 5,412.09 | — |
Full pool 5,430.0 ftLow 5,398.52 ft · Nov 8High 5,426.23 ft · Jun 9
View data table
| Month | Low (ft) | High (ft) |
|---|---|---|
| Nov 2026 | 5,407.82 | 5,407.93 |
| Oct 2026 | 5,408.11 | 5,413.03 |
| Sep 2026 | 5,406.28 | 5,412.86 |
| Aug 2026 | 5,406.76 | 5,417.35 |
| Jul 2026 | 5,417.89 | 5,423.81 |
| Jun 2026 | 5,424.35 | 5,426.19 |
| May 2026 | 5,421.33 | 5,425.71 |
| Apr 2026 | 5,421.06 | 5,425.20 |
| Mar 2026 | 5,425.06 | 5,426.19 |
| Feb 2026 | 5,419.09 | 5,425.05 |
| Jan 2026 | 5,413.00 | 5,418.61 |
| Dec 2025 | 5,407.23 | 5,412.47 |
| Nov 2025 | 5,398.00 | 5,407.05 |
Full pool 5,430.0 ft
View data table
| Year | Low (ft) | High (ft) |
|---|---|---|
| 2026 | 5,406.28 | 5,426.23 |
| 2025 | 5,394.23 | 5,427.38 |
| 2024 | 5,396.84 | 5,429.46 |
| 2023 | 5,384.03 | 5,429.46 |
| 2022 | 5,384.01 | 5,427.00 |
| 2021 | 5,386.12 | 5,429.09 |
| 2020 | 5,375.69 | 5,428.98 |
| 2019 | 5,390.28 | 5,429.71 |
| 2018 | 5,381.63 | 5,420.76 |
| 2017 | 5,383.63 | 5,429.50 |
| 2016 | 5,404.08 | 5,405.98 |
Full pool 5,430.0 ftHighest 5,430.13 ft · Apr 9, 2004Lowest 5,302.04 ft · Aug 7, 2002
View data table
| Decade | Low (ft) | High (ft) |
|---|---|---|
| 2020s | 5,375.69 | 5,429.46 |
| 2010s | 5,362.27 | 5,429.88 |
| 2000s | 5,302.04 | 5,430.13 |
- Horsetooth Reservoir level
- Full pool 5,430.0 ft
- Above full pool
Horsetooth Reservoir on Nov 7 in past years
Lake facts
- Highest since 2001
- 5,430.13 ftApr 9, 2004
- Lowest since 2001
- 5,302.04 ftAug 7, 2002
- Data since
- Mar 31, 2001
- Dam
- Horsetooth Damcompleted 1949
- River
- Offstream storage (Colorado-Big Thompson Project)
- Owned by
- Bureau of Reclamation
- Dam location
- Larimer County
- Gauge location
- 40.5994, −105.1711
Dam, river and owner from the National Inventory of Dams (USACE). Records cover Mar 31, 2001 to today (daily averages).
Weather on the lake
- This Afternoon67°FHighLow 39°FSSE 2 mphSunny
- Tonight39°FLowW 6 mphMostly Clear
- Monday69°FHighLow 40°FSSE 3–9 mphSunny
- Tuesday69°FHighLow 37°FWNW 2–14 mphMostly Sunny
- Wednesday64°FHighLow 38°FNNW 3–8 mphSunny
- Thursday67°FHighLow 40°FS 3–7 mphSunny
- Friday68°FHighLow 40°FSSW 1–7 mphSunny
Forecast: National Weather Service for the dam area (40.60, −105.17). Wind speeds are forecasts, not measurements.
Nearby lakes
Quick answers
What is the full pool level of Horsetooth Reservoir?
5,430.0 ft above mean sea level, the top of its conservation pool. Above it, water is released or flows over the spillway of Horsetooth Dam.
How much does Horsetooth Reservoir need to be full?
Horsetooth Reservoir needs 22.18 ft more water to reach full pool (5,430.0 ft), as of Nov 7, 2026.
Is Horsetooth Reservoir rising or falling?
It is falling: −0.21 ft in the last 7 days and −0.03 ft in 24 hours, to 5,407.82 ft on Nov 7, 2026 (Bureau of Reclamation).
When was Horsetooth Reservoir last full?
It was last at or above full pool (5,430.0 ft) on Apr 14, 2004. On Nov 7, 2026 it was 22.18 ft below.
What is the highest level in our data?
Horsetooth Reservoir reached 5,430.13 ft on Apr 9, 2004. The lowest was 5,302.04 ft on Aug 7, 2002 (Reclamation data since 2001; older records are not in this data set).
How much has Horsetooth Reservoir changed in the last year?
In the last 12 months it ranged from 5,398.52 ft (Nov 8, 2025) to 5,426.23 ft (Jun 9, 2026), a swing of 27.71 ft.
How often is this page updated?
This page is updated every day with the daily reading of the Bureau of Reclamation, which is usually published one or two days later. The last reading is from Nov 7, 2026.
Where this data comes from
Daily elevation from the Bureau of Reclamation (data.usbr.gov). Updated once a day. Weather from the National Weather Service. Dam details from the National Inventory of Dams.
Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.