MEDIAN FLOW RATE · 1 YEAR
13,957cfs 15.9% vs avg
Optimal band: 10,849–14,679 cfs
PERIOD HIGH
46,339cfs
PERIOD LOW
3,862cfs
RUNNABLE
30%
last 1 year in band
Gauge Height
7.95ft
Water Temperature
68.4°F
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
13.7in
≈ normal
13.65 in of precipitation so far this year — about average for this point in the season (normal 14.17 in).
YTD Total
13.7in
This year so far
Normal to Date
14.2in
30-yr average
Typical Range
10.8–17.4in
10th–90th pct YTD
Departure
-4%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 0.58" · normal 2.19" (1.4–3.3)
Feb: 1.06" · normal 1.76" (0.8–2.9)
Mar: 2.94" · normal 2.13" (1.0–3.6)
Apr: 2.52" · normal 2.30" (1.4–3.3)
May: 2.47" · normal 2.48" (1.3–3.5)
Jun: 4.06" · normal 2.83" (1.5–4.3)
Jul: 0.02" (so far)· normal 0.81" (0.2–1.6)
Aug: normal 0.98" (0.3–1.9)
Sep: normal 1.50" (0.5–2.7)
Oct: normal 2.21" (0.7–3.6)
Nov: normal 2.40" (1.3–3.6)
Dec: normal 2.26" (1.5–3.2)
Baseline 1991–2020 · Source: Open-Meteo06:39 UTC
Your History · Flathead River near Polson MT
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Weather Conditions
WEATHER CONDITIONS
TODAY
91°
65°
MON
91°
67°
TUE
85°
67°
WED
87°
65°
THU
93°
62°
FRI
95°
65°
SAT
97°
68°
FISH INDEX
Temperature
Ideal
Wind
Calm
Pressure
Rising — Slow
Moon Phase
Average
DAYLIGHT
SUNRISE
05:52 AM
SUNSET
09:33 PM
15H 41M OF DAYLIGHT
MOON PHASE
Waning Crescent
6% illuminated
Station Location
47.6803, -114.2467Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-12 00:00 UTC
Site #12372000·USGS
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