Milk River at Merrill Road, near Harlem, Mount

USGS Site No: 06153800Milk River • Blaine County, MT

Milk River at Merrill Road, near Harlem, Mount on the Milk River is currently at 623 cfs (Normal — 59th percentile for this date) . Gage height: 9.84 ft.

Reading from

623
CFS Discharge
9.84
Gage Height (ft)
Normal
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 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 0
25th Low threshold 265
50th (Median) Normal (median) 503
75th High threshold 825 Today: 623 cfs
95th Very High threshold 0

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.

986 493 0 cfs Apr 4 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 518
May 27, 2026 465
May 26, 2026 466
May 25, 2026 493
May 24, 2026 491
May 23, 2026 488
May 22, 2026 505
May 21, 2026 547
May 20, 2026 560
May 19, 2026 626
May 18, 2026 695
May 17, 2026 696
May 16, 2026 661
May 15, 2026 644
Apr 19, 2026 90
Apr 18, 2026 92
Apr 17, 2026 89
Apr 16, 2026 95
Apr 15, 2026 103
Apr 14, 2026 92
Apr 13, 2026 92
Apr 12, 2026 92
Apr 11, 2026 91
Apr 10, 2026 92
Apr 9, 2026 92
Apr 8, 2026 92
Apr 7, 2026 94
Apr 6, 2026 97
Apr 5, 2026 102
Apr 4, 2026 102

Station Information

USGS Site No
06153800
State
MT
County
Blaine County
Coordinates
48.5243, -108.8552
Drainage Area
8,925 mi²
Datum (ft)
2,353.0
HUC Code
10050004
View on USGS NWIS →

Recent Extremes

Max discharge
696 cfs
May 17, 2026
Min discharge
50 cfs
Nov 26, 2025

Computed from the local daily-values archive.

Nearby Gauges