13 lakes live now
Live US lake & reservoir water levels
Percent full and 30-day trend from USGS and CDEC gages, with a plain-English read on whether you can launch a boat.
Lakes with a current reading
See all →Shasta Lake
Sacramento River · CA
81%
healthy
Lake Oroville
Feather River · CA
90%
near full
Lake Berryessa
Putah Creek · CA
97%
near full
Folsom Lake
American River · CA
95%
near full
Lake Allatoona
Etowah River · GA
841.5 ft
no live reading
Pine Flat Lake
Kings River · CA
68%
below normal
Lake Isabella
Kern River · CA
59%
below normal
Millerton Lake
San Joaquin River · CA
94%
near full
New Melones Lake
Stanislaus River · CA
72%
healthy
Don Pedro Reservoir
Tuolumne River · CA
94%
near full
San Luis Reservoir
Offstream (California Aqueduct) · CA
64%
below normal
Cachuma Lake
Santa Ynez River · CA
94%
near full
Casitas Reservoir
Coyote Creek (offstream) · CA
100%
near full
Biggest 24-hour movers
| Lake | State | Level | 24h Δ (ft) |
|---|---|---|---|
| San Luis Reservoir | CA | 64% | −13,377 |
| Shasta Lake | CA | 81% | −13,094 |
| Lake Oroville | CA | 90% | −10,802 |
| Pine Flat Lake | CA | 68% | −8,196 |
| Folsom Lake | CA | 95% | −6,004 |
| Millerton Lake | CA | 94% | −3,548 |
Browse by state
Common questions
Where does the lake level data come from?
Directly from public water-data feeds: USGS Water Services for most lakes and CDEC for California reservoirs. LakeLevelNow fetches each lake's own gage — the number you see is the same one the operator reports.
How often are the levels updated?
USGS instantaneous gages update every 15–60 minutes; CDEC storage is daily. Each reading carries a timestamp so you can see exactly when it was taken.
What does "percent full" mean?
Current storage divided by published full capacity, as a percentage. 100% means full pool; low percentages indicate drawdown for drought, flood control, or water supply.
Is the level shown in real time?
Almost — it is the most recent reading from the source, usually minutes to hours old. Always confirm conditions with the lake operator before heading out.