MEDIAN FLOW RATE · 30 DAY
66cfs 32.9% vs avg
Optimal band: 42 –56 cfs
PERIOD HIGH
73cfs
PERIOD LOW
11cfs
RUNNABLE
26%
last 30 day in band
Precipitation History
Precipitation · YTD
DryDrier than normal
2026 to date
9.5in
-25% vs normal
9.47 in of precipitation so far this year, 25% below the 30-year normal of 12.56 in for this point in the season.
YTD Total
9.5in
This year so far
Normal to Date
12.6in
30-yr average
Typical Range
9.4–16.1in
10th–90th pct YTD
Departure
-25%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 0.28" · normal 0.81" (0.4–1.1)
Feb: 1.53" · normal 0.92" (0.4–1.5)
Mar: 2.07" · normal 1.54" (0.7–2.6)
Apr: 1.24" · normal 2.83" (1.9–3.6)
May: 2.07" · normal 3.33" (1.5–4.7)
Jun: 2.16" · normal 2.69" (1.3–4.1)
Jul: 0.12" (so far)· normal 1.09" (0.3–1.9)
Aug: normal 0.99" (0.3–2.1)
Sep: normal 1.76" (0.6–3.1)
Oct: normal 2.23" (1.1–3.3)
Nov: normal 1.12" (0.4–1.8)
Dec: normal 0.88" (0.4–1.6)
Baseline 1991–2020 · Source: Open-Meteo03:46 PM
Your History · Willow Creek near Boyd MT
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Weather Conditions
WEATHER CONDITIONS
TODAY
87°
61°
FRI
94°
58°
SAT
101°
67°
SUN
108°
67°
MON
99°
71°
TUE
106°
67°
WED
102°
71°
FISH INDEX
Temperature
Warm
Wind
Light
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:38 AM
SUNSET
09:06 PM
15H 28M OF DAYLIGHT
MOON PHASE
Waning Crescent
27% illuminated
Station Location
45.4221, -109.2305Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-09 00:00 UTC
Site #06211500·USGS
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