Rivermatics

USGS Streamgage 06109500

Missouri River at Virgelle, MT

Missouri River at Virgelle, MT is USGS streamgage 06109500 in Montana, monitoring river discharge in hydrologic subbasin 10040101. It sits on the Missouri River, alongside 51 other gauges Rivermatics tracks on the same river. It drains a watershed of about 34,000 square miles. Discharge records at this site go back to 1935. Typical flow runs near 7,931.9 cfs in July and 7,752 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.

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Gauge details

State
Montana
Drainage area
34,000 sq mi
Gauge elevation
2,512 ft
Subbasin (HUC-8)
10040101
Coordinates
48.00378, -110.25882
USGS site number
06109500
Records begin
1935-03-01 (91 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Missouri River at Virgelle, MT. 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
5,064 5,207 5,406
5,034 5,300 5,856
4,973 5,305 5,990
4,940 5,300 5,989
4,873 5,250 5,918
4,841 5,226 5,892
4,745 5,159 5,769
4,715 5,152 5,782
4,662 5,109 5,723
4,612 5,075 5,708
4,572 5,043 5,684
4,530 5,012 5,651
4,497 4,985 5,620
4,464 4,960 5,609

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 91 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 4,051.6 6,012.9 8,378.7
February 4,311.4 6,217.2 8,699.3
March 4,625.2 6,527.7 10,374.2
April 4,944 7,752 13,073.3
May 6,023.2 11,855.8 22,067.7
June 6,419.7 14,130 30,073.3
July 4,463.2 7,931.9 16,624.8
August 3,828.4 5,652.3 8,912.6
September 3,867.7 5,425.7 8,341.3
October 4,123.2 5,679.4 8,181.9
November 4,314 5,945.3 8,246.7
December 4,048.1 6,044.5 8,130.3

All values in cubic feet per second (cfs).

Common questions

When does Missouri River at Virgelle, MT normally run highest?
June, on the long-term record. The median daily flow that month is about 14,130 cfs, against 5,425.7 cfs in September, 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 Virgelle, MT?
It depends on the month. In January, half of days historically fall near 6,012.9 cfs, with the middle 80% of days between 4,051.6 and 8,378.7 cfs. The month-by-month table on this page gives the full range.
How long has Missouri River at Virgelle, MT been measured?
Discharge records at USGS site 06109500 begin in 1935, about 91 years, covering roughly 9,200 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 Virgelle, MT?
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 Virgelle, MT?
The gauge sits at 48.00378, -110.25882, in Montana, in hydrologic subbasin 10040101, at an elevation of about 2,512 feet, draining roughly 34,000 square miles.
Can I use Missouri River at Virgelle, MT 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 region