Lake Granby Water Level Today | Current Elevation, Storage & Percent Full
Current Lake Granby water level today, elevation, storage, percent full, recent trend, last updated date, and Colorado-Big Thompson context.
This page tracks Lake Granby elevation, storage, percent full, recent movement,
and source information for readers checking current water conditions.
Lake Granby is currently at 8,249.7 feet,
63% full, with
341,394 acre-feet stored, down 1.05 feet over the last 7 days.
Latest reading: 2026-07-26.
Lake Granby water level today
What is the Lake Granby water level today?
Lake Granby is currently at 8,249.7 feet, with 341,394 acre-feet stored.
How full is Lake Granby?
Lake Granby is 63% full based on the latest storage snapshot.
Is Lake Granby rising or falling?
Lake Granby is falling, down 1.05 feet over the last 7 days.
When was Lake Granby last updated?
Lake Granby's latest reading is dated 2026-07-26 from USBR RISE API.
What storage band matters for Lake Granby?
Lake Granby's inactive pool threshold is 8,186 feet. Current elevation is 8,249.7 feet.
Is Lake Granby rising or falling?
Lake Granby is falling 1.05 feet over the 7-day window.
Lake Granby is falling 4.54 feet over the 30-day window.
Current Lake Granby conditions
- Latest reading
- 2026-07-26
- Current elevation
- 8,249.7 feet
- Current storage
- 341,394 acre-feet
- Percent full
- 63% full
- Seven-day elevation change
- -1.05 feet
- Thirty-day storage change
- -26,849 acre-feet
- Source
- USBR RISE API
- Source updated
- 2026-07-26
- Current water level and storage snapshot
- Recent elevation trend and seven-day movement
- Percent full and source context for Upper Basin