Rivermatics

USGS Streamgage 10302025

Walker River near Mouth at Walker Lake, NV

Walker River near Mouth at Walker Lake, NV is USGS streamgage 10302025 in Nevada, monitoring river discharge in hydrologic subbasin 16050304. It sits on the Walker River, alongside 6 other gauges Rivermatics tracks on the same river. It drains a watershed of about 3,134 square miles. Discharge records at this site go back to 2004. Typical flow runs near 1.6 cfs in July and 9.2 cfs in April, with the higher of the two arriving in April. 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
Nevada
Drainage area
3,134 sq mi
Gauge elevation
3,940 ft
Subbasin (HUC-8)
16050304
Coordinates
38.79103, -118.72709
USGS site number
10302025
Records begin
2004-10-01 (22 years)
Rivermatics forecast
14-day flow outlook + water temperature

14-day flow forecast

Based on observations through for Walker River near Mouth at Walker Lake, NV. 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
2 3 4.1
1.3 2.8 4.8
1.1 2.9 5.6
0.9 2.8 5.9
0.8 2.8 6.2
0.5 2.6 6.2
0.4 2.5 6.2
0.3 2.4 6.2
0.4 2.5 6.6
0.2 2.4 6.7
0 2.2 8.1
0 2.8 9.8
0 2.7 9.5
0 2.4 8.7

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 22 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 0.4 6 194
February 0.7 27.1 302.3
March 0.8 16.2 763.7
April 0.6 9.2 850
May 0.4 13.2 1,253.2
June 0 17.4 2,076.7
July 0 1.6 1,415.3
August 0 3.6 292.9
September 0 3.7 179.8
October 0 1.4 104
November 0.2 6.9 137.8
December 0.3 4.4 106.8

All values in cubic feet per second (cfs).

Common questions

When does Walker River near Mouth at Walker Lake, NV normally run highest?
February, on the long-term record. The median daily flow that month is about 27.1 cfs, against 1.4 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Walker River near Mouth at Walker Lake, NV?
It depends on the month. In January, half of days historically fall near 6 cfs, with the middle 80% of days between 0.4 and 194 cfs. The month-by-month table on this page gives the full range.
How long has Walker River near Mouth at Walker Lake, NV been measured?
Discharge records at USGS site 10302025 begin in 2004, about 22 years, covering roughly 6,450 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Walker River near Mouth at Walker Lake, NV?
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 Walker River near Mouth at Walker Lake, NV?
The gauge sits at 38.79103, -118.72709, in Nevada, in hydrologic subbasin 16050304, at an elevation of about 3,940 feet, draining roughly 3,134 square miles.
Can I use Walker River near Mouth at Walker Lake, NV 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 Walker River

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

Other gauges in this region