Madison River level at Cameron
Montana · Fishing & wading
Measured at USGS 06038500 — Madison River bl Hebgen Lake nr Grayling MT · NWS forecast point GRYM8
Reading taken · as of 18 min ago
Below normal — good wading, low and clear
At 760 CFS, this gauge is running 72% of normal for mid-September — below the 1,050 CFS median USGS has recorded for this date across 87 years of record (1939–2026).
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Flow history at Cameron
Daily values from USGS 06038500, updated every 15 to 60 minutes; NWS forecast for GRYM8 reissued through the day. Provisional.
Highest crests on record at Cameron
2 on record
| Stage | Flow | Date |
|---|---|---|
| 5.30 ft | 10,200 CFS | Aug 15, 1959 |
| 3.69 ft | 5,090 CFS | Jun 3, 1943 |
Crests published by the National Weather Service.
About Madison River at Cameron
In Montana — the reading paddlers, anglers and outfitters here check before committing to a shuttle. Montana's most-checked trout gauge; salmonfly timing.
Madison River at Cameron — common questions
3 questions
What makes the flow change on Madison River at Cameron?
Rain upstream, plus seasonal baseflow. The 12-month chart shows how it behaves through the year.
Is Madison River at Cameron high or low for this time of year?
The USGS median flow for mid-September here is 1,050 CFS, from 87 years of record (1939–2026). Today is 72% of it. The comparison is what makes the raw number mean anything: the same reading is a drought on one river and a flood on another.
How often does this reading update?
USGS transmits from gauge 06038500 every 15 to 60 minutes, and the National Weather Service reissues the flood forecast for GRYM8 a few times a day — more often when the river is rising. This page refreshes from both when you open it. The timestamp is in the gauge's local time.