MEDIAN FLOW RATE · 1 DAY
1,560cfs 22.4% vs avg
Optimal band: 1,488–2,012 cfs
PERIOD HIGH
1,960cfs
PERIOD LOW
1,530cfs
RUNNABLE
100%
last 1 day in band
Gauge Height
5.57ft
Precipitation History
Your History · St. Mary R nr Int'l Boundary, MT
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Station Location
49.0119, -113.2992Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-07 21:10 UTC
Site #05020500·USGS
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