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
02423397 02461192 02457595 02458148 02458600 02458502 0242354650 02400100 02423586 02470805 02458450 02461130 02455980 02453500 02450250 02397530 023432415 02413210 02423160 02338523 02423571 02423380 02423496 02469525 02469100 02407514 02405500 02423555 02423130 02423647 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.