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