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© 2026·AI-powered bite forecast
0.1.0+2163 · 92c14a40

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United States / Washington / South Fork Palouse River

Bite forecast: South Fork Palouse River

  • length 26 mi
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Best fishing days for the next week

  1. MondaySeptember 7weather-based forecast
    62/100high activity

    Partly cloudy: 55–82 °F

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South Fork Palouse River (Washington) — one of the area's fishing spots. About 41 km long. Nearest town — Colfax. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.

SundaySeptember 6weather-based forecast
61/100high activity

Clear: 50–73 °F

  • TuesdaySeptember 8weather-based forecast
    57/100medium activity

    Cloudy: 57–84 °F

  • Nearby towns

    • Colfax0.1 mi

    Bite calendar

    7–Sep 13
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    Yellow perchCoho salmonSmallmouth bassWalleyeBrook troutCutthroat troutLake troutSteelheadWhitefishBlack crappieBluegillChannel catfishChinook salmonLargemouth bassRainbow trout

    Black crappie

    6/10 · Fair

    Hourly activity

    0:006:0012:0018:0023:00
    Bite activity:highmediumlow

    The bite is strong — fish are active. Weather is steady, with no sharp swings — fish behave predictably.

    Peak bite hours

    Best time — 06:00–08:00 (dawn bite) and 19:00–21:00 (dusk bite).

    Tactics

    Work the cover — snags, weed edges, hole entrances; retrieve the lure with pauses.

    Lures

    In clear water, natural colors work best: small jig or minnow bait.

    Gear

    It's a hot day — a hat, sunglasses, and plenty of water are a must.

    Summary

    Worth going — it's a productive day.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 69 °F — inside the 57–75 °F comfort range for Black crappie, so baseline activity is high.

    Computed water temperature by month; the green band is the 57–75 °F comfort rangecomfort 57–75 °F69 °F
    JFMAMJJASOND

    Black crappie works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.

    The day: daylight hours and when Black crappie feeds0:0012:0024:00

    Pressure is dropping 0.03 inHg over the day — fish are usually more active ahead of a weather change.

    Pressure through the day, 0.03 inHg change
    00:00 · 29.9923:00 · 29.95 inHg

    One more input — the moon's feeding windows: within their hours the score sits higher than across the rest of the day. The window times are in the “Solunar feeding periods” card below.

    Feeding windows on the day scale0:0012:0024:00

    September is an active season for Black crappie here.

    JFMAMJJASOND

    These are the same values the bite curve above was computed from. How the forecast works

    7 SepMonday, September 7
    +76°

    Partly cloudy · feels like +73°

    Low / high
    +54°…+82°
    Precipitation
    0.00 in
    Wind
    4 mph NE
    Cloud cover
    29%
    Humidity
    23%
    Pressure
    29.92 inHg
    00:00+56°—5 mphwest wind, 5 mph53%22%
    01:00+55°—5 mphwest wind, 5 mph54%31%
    02:00+55°—4 mphwest wind, 4 mph56%11%
    03:00+54°—5 mphwest wind, 5 mph56%78%
    04:00+54°—5 mphwest wind, 5 mph55%100%
    05:00+54°—5 mphwest wind, 5 mph56%85%
    06:00+56°—4 mphwest wind, 4 mph53%83%
    07:00+58°—4 mphwest wind, 4 mph49%70%
    08:00+61°—4 mphnorthwest wind, 4 mph44%58%
    09:00+65°—3 mphnorthwest wind, 3 mph38%52%
    10:00+70°—3 mphnorth wind, 3 mph32%48%
    11:00+74°—4 mphnorth wind, 4 mph27%41%
    12:00+76°—4 mphnortheast wind, 4 mph23%29%
    13:00+79°—5 mphnortheast wind, 5 mph20%16%
    14:00+80°—5 mphnortheast wind, 5 mph18%6%
    15:00+82°—3 mpheast wind, 3 mph17%1%
    16:00+82°—2 mphsoutheast wind, 2 mph17%0%
    17:00+81°—3 mphsouth wind, 3 mph20%3%
    18:00+77°—5 mphsouthwest wind, 5 mph27%12%
    19:00+71°—6 mphsouthwest wind, 6 mph36%24%
    20:00+66°—7 mphsouthwest wind, 7 mph44%37%
    21:00+64°—7 mphsouthwest wind, 7 mph49%48%
    22:00+63°—6 mphwest wind, 6 mph52%60%
    23:00+62°—6 mphwest wind, 6 mph55%69%
    +82°+68°+54°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Monday, September 7
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:28
    Sunset
    19:29
    Day length
    13 h 1 min
    Sunshine hours
    12 h 14 min
    UV index
    5
    moderate
    Moon
    Waning crescent
    Moonrise
    01:39
    Moonset
    17:47

    The day is 3 min shorter than yesterday.

    Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.

    Solunar feeding periods

    +10% in the windowMonday, September 7
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Minor01:09–02:09Moonrise
    • Major08:51–10:51Moon overhead
    • Minor17:17–18:17Moonset
    • Major21:20–23:20Moon underfoot

    The windows are set by the moon's transit and rise, and the forecast above already accounts for them: within these hours the bite score sits higher than across the rest of the day, while the day's overall level still comes from the catch-calibrated model.

    What are solunar periods?

    Measured river conditions are available for South Fork Palouse River: current gauge height, streamflow, and water temperature when reported by the source.

    Water

    Gauge height
    0.63 ft
    Streamflow
    1.6 ft³/s

    USGS gauge SOUTH FORK PALOUSE RIVER AT PULLMAN, WA, 5 mi away · measured 2026-09-02 16:15 · data source · provisional data, subject to revision