MEDIAN FLOW RATE · 1 YEAR
745cfs 24.8% vs avg
Optimal band: 601–813 cfs
PERIOD HIGH
8,334cfs
PERIOD LOW
164cfs
RUNNABLE
13%
last 1 year in band
Precipitation History
Your History · GRAND RIVER AT PORTLAND, MI
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Weather Conditions
WEATHER CONDITIONS
TODAY
83°
59°
MON
93°
68°
TUE
92°
76°
WED
92°
76°
THU
94°
75°
FRI
94°
75°
SAT
93°
75°
FISH INDEX
Temperature
Too Hot
Wind
Calm
Pressure
Stable
Moon Phase
Peak Activity
DAYLIGHT
SUNRISE
06:03 AM
SUNSET
09:22 PM
15H 19M OF DAYLIGHT0H 0M REMAINING
MOON PHASE
Full Moon
99% illuminated
PEAK ACTIVITY
Station Location
42.8564, -84.9122Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-28 21:48 UTC
Site #04114000·USGS
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