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
04101500 0409754132 04095300 040970647 04168400 04123500 04121944 04167625 04108660 04108862 04135700 04161820 04136000 04125550 04121970 04121680 04162010 04125460 04135800 04124000 04157005 040325155 04137020 04057800 04166100 04137500 04118564 04035995 04032150 04057801 04043244 04166500 04124200 04121660 04137030 04137025 04067500 04121650 04137005 04043016 04041500 04043238 04043097 04136900 04136500 04001000 421337083074201 04165500 04059000 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.