MEDIAN FLOW RATE · 1 YEAR
1,932cfs 11.4% vs avg
Optimal band: 311–421 cfs
PERIOD HIGH
5,944cfs
PERIOD LOW
86cfs
RUNNABLE
21%
last 1 year in band
Gauge Height
3.13ft
Precipitation History
Precipitation · YTD
DryDrier than normal
2026 to date
5.3in
-52% vs normal
5.26 in of precipitation so far this year, 52% below the 30-year normal of 11.05 in for this point in the season.
YTD Total
5.3in
This year so far
Normal to Date
11.1in
30-yr average
Typical Range
7.4–14.1in
10th–90th pct YTD
Departure
-52%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 0.22" · normal 0.66" (0.3–1.0)
Feb: 0.80" · normal 0.83" (0.3–1.3)
Mar: 1.36" · normal 1.37" (0.6–2.0)
Apr: 0.71" · normal 2.15" (1.4–2.9)
May: 1.04" · normal 2.97" (1.7–4.3)
Jun: 0.94" · normal 2.43" (1.1–3.7)
Jul: 0.19" (so far)· normal 1.21" (0.2–3.0)
Aug: normal 0.84" (0.3–1.8)
Sep: normal 1.39" (0.3–2.6)
Oct: normal 1.78" (0.7–2.5)
Nov: normal 0.99" (0.5–1.6)
Dec: normal 0.73" (0.3–1.2)
Baseline 1991–2020 · Source: Open-Meteo16:15 UTC
Your History · Clarks Fork Yellowstone River nr Belfry MT
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Weather Conditions
WEATHER CONDITIONS
TODAY
96°
73°
TUE
97°
70°
WED
91°
68°
THU
91°
68°
FRI
95°
67°
SAT
90°
70°
SUN
91°
73°
FISH INDEX
Temperature
Too Hot
Wind
Moderate
Pressure
Stable
Moon Phase
Peak Activity
DAYLIGHT
SUNRISE
05:42 AM
SUNSET
09:01 PM
15H 19M OF DAYLIGHT
MOON PHASE
New Moon
1% illuminated
PEAK ACTIVITY
Station Location
45.0099, -109.0654Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-13 00:00 UTC
Site #06207500·USGS
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