Gallatin River Near Gallatin Gateway, Mount

USGS Site No: 06043500 • Gallatin River • Gallatin County, MT

Gallatin River Near Gallatin Gateway, Mount on the Gallatin River is currently at 2,080 cfs (Very High — 120th percentile for this date) . Gage height: 3.28 ft.

Reading from

2,080
CFS Discharge
3.28
Gage Height (ft)
Very High
Flow Condition
Normal
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile Label CFS Threshold Today's Flow
10th Very Low threshold 332
25th Low threshold 375
50th (Median) Normal (median) 412
75th High threshold 470
95th Very High threshold 600

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

5.7k 2.9k 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 2,140 —
May 27, 2026 1,870 —
May 26, 2026 1,650 —
May 25, 2026 1,350 —
May 24, 2026 1,130 —
May 23, 2026 1,040 —
May 22, 2026 1,050 —
May 21, 2026 1,130 —
May 20, 2026 1,150 —
May 19, 2026 1,220 —
May 18, 2026 1,360 —
May 17, 2026 1,540 —
May 16, 2026 1,720 —
May 15, 2026 1,930 —
Apr 20, 2026 616 —
Apr 19, 2026 593 —
Apr 18, 2026 578 —
Apr 17, 2026 595 —
Apr 16, 2026 668 —
Apr 15, 2026 651 —
Apr 14, 2026 689 —
Apr 13, 2026 748 —
Apr 12, 2026 761 —
Apr 11, 2026 693 —
Apr 10, 2026 644 —
Apr 9, 2026 619 —
Apr 8, 2026 606 —
Apr 7, 2026 564 —
Apr 6, 2026 537 —
Apr 5, 2026 527 —

Station Information

USGS Site No
06043500
State
MT
Coordinates
45.4973, -111.2707
Drainage Area
819 mi²
Datum (ft)
5,167.7
HUC Code
10020008
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
5.0 ft
Flood Stage
6.0 ft
Moderate Flood
7.0 ft
Major Flood
7.5 ft

Currently 2.72 ft below flood stage.

Recent Extremes

Max discharge
4,430 cfs
Jun 2, 2025
Min discharge
223 cfs
Jan 24, 2026
Days at flood stage
0

Computed from the local daily-values archive.