Guernsey Reservoir water level today
Reservoir in Wyoming
4,396.63ft
1,340.09 m · NGVD29
Measured · provisional
24 hours
▲ 0.07 ft
7 days
▲ 0.60 ft
30 days
–
What this means
The lake has risen 0.60 ft in 7 days.
Since 2026, the lowest daily level was 4,395.45 ft (Oct 2026) and the highest 4,396.63 ft (Oct 2026).
Guernsey Reservoir level chart
Loading chart…
Measured
Normal range for the date (middle 50% of past years)
Records & details
- Highest
- 4,396.63 ft on Oct 21, 2026
- Lowest
- 4,395.45 ft on Oct 7, 2026
- Records from
- 2026 (0 years of daily data)
- Storage
- 6,565 acre-ft
- Water temperature
- Not measured here
Guernsey Dam
- Height
- 137 ft
- Completed
- 1927
- Purposes
- Hydroelectric; Irrigation
- Owner
- BUREAU OF RECLAMATION
- Normal storage
- 45,612 acre-ft
- Surface area
- 2,380 acres
National Inventory of Dams (U.S. Army Corps of Engineers). All dam facts →
Weather & wind
Overnight50°F · Mostly Cloudy
Wind ESE 5 mph
Wind ESE 5 mph
Friday76°F · Mostly Sunny
Wind SSW 5 to 20 mph
Wind SSW 5 to 20 mph
Friday Night38°F · Partly Cloudy
Wind NW 10 to 25 mph
Wind NW 10 to 25 mph
Saturday51°F · Mostly Sunny
Wind N 5 to 25 mph
Wind N 5 to 25 mph
Saturday Night36°F · Mostly Cloudy
Wind ESE 5 to 15 mph
Wind ESE 5 to 15 mph
Sunday50°F · Chance Rain Showers
Wind ESE 10 to 15 mph
Wind ESE 10 to 15 mph
NOAA National Weather Service forecast for this lake's location, updated 13 h ago.