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
15258000 15087810 15086225 15072000 15019990 15087585 15088000 15297610 15087700 15056560 15302000 15085697 15219000 15276000 15215900 15238986 15101490 15057596 15015595 15081497 15295700 15261000 15294005 15041200 15292700 15239900 15239070 15056210 15747000 15283700 15519100 15290000 15446000 15484000 15297475 15300300 15266300 15238990 15304150 15519030 15565447 15515500 15238951 15052000 15564860 15024800 15056500 15209770 15908000 15580095 15129500 15008000 15200280 15129120 15068040 15493000 15300500 15564879 15304010 15303600 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.