MEDIAN FLOW RATE · 30 DAY
281cfs 3.3% vs avg
Optimal band: 378–512 cfs
PERIOD HIGH
814cfs
PERIOD LOW
281cfs
RUNNABLE
32%
last 30 day in band
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
12.7in
≈ normal
12.74 in of precipitation so far this year — about average for this point in the season (normal 14.15 in).
YTD Total
12.7in
This year so far
Normal to Date
14.2in
30-yr average
Typical Range
11.4–18.1in
10th–90th pct YTD
Departure
-10%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 0.52" · normal 2.10" (1.1–3.0)
Feb: 1.14" · normal 1.63" (0.8–2.6)
Mar: 2.67" · normal 2.16" (1.1–3.1)
Apr: 3.04" · normal 2.10" (1.2–3.0)
May: 2.42" · normal 2.75" (1.6–4.3)
Jun: 2.94" · normal 2.99" (1.6–4.5)
Jul: 0.02" (so far)· normal 1.22" (0.3–2.5)
Aug: normal 1.05" (0.3–1.9)
Sep: normal 1.56" (0.6–2.7)
Oct: normal 2.02" (0.9–3.2)
Nov: normal 2.59" (1.1–4.4)
Dec: normal 2.28" (1.5–3.4)
Baseline 1991–2020 · Source: Open-Meteo09:43 AM
Your History · Tobacco River at Eureka, MT
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Weather Conditions
WEATHER CONDITIONS
TODAY
88°
59°
THU
86°
65°
FRI
85°
55°
SAT
88°
56°
SUN
88°
57°
MON
96°
55°
TUE
103°
61°
FISH INDEX
Temperature
Ideal
Wind
Light
Pressure
Rising — Slow
Moon Phase
Good
DAYLIGHT
SUNRISE
05:46 AM
SUNSET
09:44 PM
15H 58M OF DAYLIGHT
MOON PHASE
Last Quarter
39% illuminated
Station Location
48.8779, -115.0545Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-08 00:00 UTC
Site #12301250·USGS
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