MEDIAN FLOW RATE · 1 YEAR
162cfs 32.6% vs avg
Optimal band: 149–201 cfs
PERIOD HIGH
643cfs
PERIOD LOW
59cfs
RUNNABLE
24%
last 1 year in band
Precipitation History
Your History · Tongue River at State Line nr Decker MT
Track your history
Sign in to track your sessions at Tongue River at State Line nr Decker MT — best days, monthly trends, and time on the water.
Sign inSPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
94°
59°
THU
91°
59°
FRI
96°
66°
SAT
106°
70°
SUN
112°
74°
MON
99°
71°
TUE
103°
72°
FISH INDEX
Temperature
Ideal
Wind
Calm
Pressure
Rising — Slow
Moon Phase
Good
DAYLIGHT
SUNRISE
05:29 AM
SUNSET
08:55 PM
15H 26M OF DAYLIGHT
MOON PHASE
Last Quarter
38% illuminated
Station Location
45.0091, -106.8359Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-08 00:00 UTC
Site #06306300·USGS
Create a free account to save favorites, set flow alerts, and track conditions
