Rivermatics

USGS Streamgage 14185600

Middle Santiam River near Santiam Junction, OR

Middle Santiam River near Santiam Junction, OR is USGS streamgage 14185600 in Oregon, monitoring river discharge in hydrologic subbasin 17090006. It sits on the Middle Santiam River, alongside 2 other gauges Rivermatics tracks on the same river. It drains a watershed of about 33 square miles. Discharge records at this site go back to 2023. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead, alongside daily high and low water-temperature forecasts.

View live conditions & forecast →

Gauge details

State
Oregon
Drainage area
33 sq mi
Subbasin (HUC-8)
17090006
Coordinates
44.50133, -122.16906
USGS site number
14185600
Records begin
2023-08-18 (3 years)
Rivermatics forecast
14-day flow outlook + water temperature

14-day flow forecast

Based on observations through for Middle Santiam River near Santiam Junction, OR. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
8.1 8.3 8.7
7.9 8.2 8.9
9 11.2 20.3
8.5 9.6 12.5
8 8.7 10.4
7.6 8.3 9.5
7.4 8 9
7.2 7.8 8.8
7 7.6 8.6
6.9 7.5 8.5
6.8 7.4 8.4
6.7 7.4 8.4
6.6 7.3 8.4
6.6 7.3 8.3

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 3 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Only 8 of 12 months have enough record to summarize; the rest are omitted.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
May — 67 —
June — 33.2 —
July — 18.9 —
August — 10.8 —
September — 9.4 —
October — 21.5 —
November — 83.1 —
December — 612.8 —

All values in cubic feet per second (cfs).

Common questions

When does Middle Santiam River near Santiam Junction, OR normally run highest?
December, on the long-term record. The median daily flow that month is about 612.8 cfs, against 9.4 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
How long has Middle Santiam River near Santiam Junction, OR been measured?
Discharge records at USGS site 14185600 begin in 2023, about 3 years, covering roughly 1,083 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Middle Santiam River near Santiam Junction, OR?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. A companion model forecasts each day's water-temperature high and low. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is Middle Santiam River near Santiam Junction, OR?
The gauge sits at 44.50133, -122.16906, in Oregon, in hydrologic subbasin 17090006, draining roughly 33 square miles.
Can I use Middle Santiam River near Santiam Junction, OR data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Upstream and downstream on the Middle Santiam River

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Middle Santiam River in full.

Other gauges in this subbasin