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
02011800 01595800 03058000 01608500 03191982 03200500 03061000 03057300 03197937 03185400 03197950 03184500 03155000 03056000 03062445 03194700 01597500 03193000 03112500 02011500 03057000 01610400 03183500 03076500 03069500 01611500 03066000 03189100 03070260 03187500 03181949 03114500 03054500 02011400 03051100 03068000 03072000 03067510 03179000 03180500 03159540 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.