National Hydrology
Dashboard
Live water elevations, flow rates, and temperatures for 12,158+ water bodies across 50 states.
✨ Explore Interactive Tools
US Fish Guide
Discover freshwater fish species across the US. View photos, water temperature preferences, and habitat details.
Water Quality Score
Check our real-time water quality index for top reservoirs. See if your local lake is safe for swimming or ideal for fishing.
Community Reports
Read real-time fishing reports from local anglers. See what bait is working and share your own catch of the day.
Boat Ramp Status
Find open boat ramps near any US lake or reservoir. Real-time water level data shows which launch ramps are accessible today.
Drought Monitor
Track drought conditions across all 50 states. Updated weekly from NOAA data with D0–D4 severity breakdowns and reservoir impact analysis.
Water Temperature
Monitor current water temperatures across the country. Identify warming trends and find the perfect conditions for your target species.
🔥 Warmest Waters
- Grand Calumet River At Columbia Av At Hammond, In 161.8°F
- Grand Calumet River At Columbia Av At Hammond, In 159.6°F
- Grand Calumet River At Columbia Av At Hammond, In 158.7°F
- Grand Calumet River At Columbia Av At Hammond, In 157.8°F
- Grand Calumet River At Columbia Av At Hammond, In 157.1°F
- Boiling River At Mammoth,Ynp 113.7°F
🌊 Fastest Rivers
- Mississippi River At Vicksburg, Ms 864,000 cfs
- Mississippi River At Vicksburg, Ms 859,000 cfs
- Mississippi River At Memphis, Tn 803,000 cfs
- Mississippi River At New Madrid, Mo 801,000 cfs
- Mississippi River At New Madrid, Mo 790,000 cfs
- Mississippi River At Memphis, Tn 785,000 cfs
⛰️ Highest Elevations
- Lower Twin Lake Nr Bridgeport, Ca 7,201 ft
- Wild Horse Res Nr Gold Cr, Nv 6,192 ft
- Wild Horse Res Nr Gold Cr, Nv 6,192 ft
- Wild Horse Res Nr Gold Cr, Nv 6,192 ft
- Wild Horse Res Nr Gold Cr, Nv 6,192 ft
- Bear Lake At State Park Marina Nr Garden City, Ut 5,916 ft
🎣 This Week's Fishing Forecast
All States →🌵 Drought Conditions
All States →📰 Water Levels & Environmental News
View All Articles →The Silent Invasion: How Zebra Mussels are Reshaping Reservoir Ecology
An exhaustive analysis of the ecological impact of invasive Zebra and Quagga mussels in US water systems, and how they alter water clarity and fishing....
State of the Drought: Analyzing the Colorado River Basin and Lake Powell's Future
An extensive update on the Colorado River Basin drought, analyzing water levels at Lake Powell and Lake Mead, and the future of western hydrology....
Winter Drawdowns: How to Capitalize on the Toughest Fishing Season
Master the art of winter fishing on drawn-down reservoirs. Learn how cold water temperatures and low water levels change fish positioning and bait selection....
📈 Trending Water Searches
🗺️ Browse Water Levels by State
❓ Frequently Asked Questions
What are US Water Levels?
US Water Levels is a comprehensive real-time dashboard that tracks water elevations, flow rates (discharge), and temperatures for thousands of lakes, reservoirs, and rivers across all 50 US states. Our data is sourced directly from the United States Geological Survey (USGS) federal sensor network and updated daily.
How often is the water level data updated?
Our systems sync with the USGS Water Services API daily. This means the water level, temperature, and flow data you see on our site reflects the most recent daily values reported by each monitoring station. Some stations report more frequently, but our dashboard focuses on daily average values for consistency.
How do I find a dam or reservoir near me?
Use our search bar at the top of the page to search by name, or browse by state using the directory above. Each water body page includes exact GPS coordinates and a Google Maps embed with "Get Directions" functionality so you can navigate directly to any lake, reservoir, or river monitored by USGS.
What does "elevation" mean for a lake or reservoir?
Elevation (measured in feet above sea level) represents the surface level of the water body. For reservoirs, this is compared against the "full pool elevation" — the maximum designed water level. When the current elevation is near full pool, the reservoir is considered full. A significantly lower elevation may indicate drought conditions.
About the National Hydrology Dashboard
The US Water Levels National Hydrology Dashboard provides free, real-time access to water level data for lakes, reservoirs, and rivers across the United States. Whether you're planning a fishing trip to Texas lakes, checking California reservoir levels during drought season, or monitoring river flows for kayaking safety, our dashboard aggregates the latest hydrological data from USGS sensors in one easy-to-use platform.
Our coverage spans all 50 states with 12,158+ actively monitored water bodies. Each location page provides current water elevation, surface temperature, discharge rate, interactive maps, GPS coordinates, and answers to frequently asked questions about the water body.