Snake-Columbia Basin Streamflow

Daily mean discharge across 2 gauges

This page tracks real-time discharge measurements from two basin-representative gauges on the Snake River system. The Snake River at Weiser (lower basin) currently reads 7,070 cfs, while the Snake River above Jackson Lake (upper basin) is at 606 cfs, both as of July 7, 2026.

The two gauges together provide representative coverage of the Snake River's hydrological behavior across its length, from the high-elevation source area to the mid-basin measuring point. Daily mean discharge values are updated continuously, with historical records spanning 363–364 observations per series.

Latest readings:

• Snake River at Weiser: 7,070 cfs (as of Jul 7, 2026)
• Snake River above Jackson Lake: 606 cfs (as of Jul 7, 2026)

Discharge is measured in cubic feet per second (cfs).