Rivermatics

USGS Streamgage 06935450

Missouri River at Washington, MO

Missouri River at Washington, MO is USGS streamgage 06935450 in Missouri, monitoring river discharge in hydrologic subbasin 10300200. It sits on the Missouri River, alongside 51 other gauges Rivermatics tracks on the same river. It drains a watershed of about 523,200 square miles. Discharge records at this site go back to 2008. Typical flow runs near 114,625.8 cfs in July and 93,366.7 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

View live conditions & forecast →

Gauge details

State
Missouri
Drainage area
523,200 sq mi
Gauge elevation
483 ft
Subbasin (HUC-8)
10300200
Coordinates
38.55972, -91.0075
USGS site number
06935450
Records begin
2008-09-04 (18 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Missouri River at Washington, MO. 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
44,930 49,591 56,945
42,917 49,070 60,188
41,653 48,462 62,755
40,488 47,631 63,530
40,044 47,964 67,114
39,600 48,453 70,956
39,654 49,325 74,311
39,689 49,971 76,227
40,047 51,729 82,071
40,311 52,859 85,448
40,487 53,613 87,038
40,886 54,965 90,168
41,033 55,618 92,314
41,343 57,331 95,313

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 12 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 30,587.1 46,861.3 163,806.5
February 34,889.3 58,724.1 130,714.3
March 40,819.4 69,725.8 212,387.1
April 55,210 93,366.7 213,633.3
May 57,380.6 140,806.5 311,096.8
June 53,350 129,900 334,300
July 51,941.9 114,625.8 253,903.2
August 49,571 74,732.3 184,871
September 42,016.7 56,663.3 177,100
October 41,251.6 53,800 206,290.3
November 42,133.3 56,010 149,966.7
December 31,690.3 47,958.1 206,548.4

All values in cubic feet per second (cfs).

Common questions

When does Missouri River at Washington, MO normally run highest?
May, on the long-term record. The median daily flow that month is about 140,806.5 cfs, against 46,861.3 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Missouri River at Washington, MO?
It depends on the month. In January, half of days historically fall near 46,861.3 cfs, with the middle 80% of days between 30,587.1 and 163,806.5 cfs. The month-by-month table on this page gives the full range.
How long has Missouri River at Washington, MO been measured?
Discharge records at USGS site 06935450 begin in 2008, about 18 years, covering roughly 4,320 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Missouri River at Washington, MO?
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. 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 Missouri River at Washington, MO?
The gauge sits at 38.55972, -91.0075, in Missouri, in hydrologic subbasin 10300200, at an elevation of about 483 feet, draining roughly 523,200 square miles.
Can I use Missouri River at Washington, MO 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 Missouri River

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

Other gauges in this subbasin