WaterQualityWatch -- Continuous Real-Time Water Quality of Surface Water in the United States

USGS is updating how statistical information is delivered. WaterWatch and WaterQualityWatch will be retired around February 24, 2026. Explore alternative tools and share feedback at wdfn@usgs.gov.

Real-Time Water Temperature, in °C

Map of , showing which states provide real-time computed water-quality data
01483155 01484100 01487165 01481000 01484272 01484680 01482100 01480000 01480120 01480000 01484080 01483700 01483177 01484525 01480120 01479000 01478000 01482695 01481500 01491000 01480065 01482800 01478950 01478650 01480025 01478245 Explanation

* Site operated on a seasonal basis or currently is not operating.
No values are available for the last 6 hours.

The "Real-time" map tracks short-term changes (over several hours) of water quality. Although the general appearance of the map changes very little from one hour to the next, individual sites may change rapidly in response to major rain events or to reservoir releases. The data used to produce this map are provisional.