This dataset includes hourly stream and air temperature data from 124 sites throughout the Northern Great Basin region of SE Oregon. Data loggers were deployed June through September of 2016 and downloaded each subsequent summer through 2021. The SE_OR_Stream_Temps and SE_OR_Air_Temps files contain temperature data (in C°) by logger serial number and site for the study period. The SE_OR_Wet_Dry delineation file contains daily flow status estimates derived from stream temperature data for each site. The SE_OR_Site_Visit_Stream and SE_OR_Site_Visit_Air files contain the date and time of the site visit along with associated information on site flow conditions, water depths, logger conditions, and stream logger water depths. The SE_OR_Points shapefile contains site locations, geographic information, data summaries, mean August stream temperatures, and modeled NorWeST stream temperatures.