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Where to fish

  • Forecast
  • Catches

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  • Favorites
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© 2026·AI-powered bite forecast
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United States / Oregon / Hells Canyon Reservoir

Bite forecast: Hells Canyon Reservoir

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Best fishing days for the next week

  1. WednesdaySeptember 9weather-based forecast
    83/100high activity

    Partly cloudy: 52–72 °F

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Hells Canyon Reservoir (Oregon) — a popular fishing spot. This page shows an hourly bite forecast for today and the week ahead; the algorithm factors in the weather, atmospheric pressure, and the moon phase.

Catches

Recorded 9 catches here. Most commonly caught: Brown trout, Largemouth bass, Steelhead. Peak season: year-round.

  • Black crappie
    Hells Canyon Reservoir
    81 °F4 mph
    Aug 14, 2020
  • Largemouth bass
    Hells Canyon Reservoir
    81 °F4 mph
    Aug 14, 2020
  • Cutthroat trout
    Hells Canyon Reservoir
    41 °F2 mph
    Apr 02, 2020
  • Brown trout
    Hells Canyon Reservoir
    46 °F0 mph
    Mar 27, 2020
  • Brown trout
    Hells Canyon Reservoir
    41 °F4 mph
    Jan 08, 2020
  • Brown trout
    Hells Canyon Reservoir
    39 °F2 mph
    Dec 29, 2019
  • Steelhead
    Hells Canyon Reservoir
    36 °F4 mph
    Dec 27, 2019
  • Steelhead
    Hells Canyon Reservoir
    46 °F4 mph
    Sep 29, 2019
SaturdaySeptember 5weather-based forecast
70/100high activity

Partly cloudy: 41–61 °F

  • TuesdaySeptember 8weather-based forecast
    70/100high activity

    Cloudy: 54–70 °F

  • Bite calendar

    7–Sep 13
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    Coho salmonBrook troutCutthroat troutSmallmouth bassWalleyeWhitefishYellow perchBluegillChannel catfishLargemouth bassSteelheadRainbow troutBlack crappieChinook salmonLake trout

    Black crappie

    5/10 · Fair

    Hourly activity

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

    The bite is moderate — fish feed in short bursts. 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

    Look for drop-offs and gaps in the weeds, retrieve slowly, lingering over promising spots.

    Lures

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

    Gear

    Pack transitional-season clothing — mornings and evenings are chilly.

    Summary

    An average day — best chances during peak windows.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 62 °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 °F62 °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 flat: it moves no more than 0.00 inHg over the day, so the weather isn't shifting today's bite.

    Pressure through the day, 0.00 inHg change
    00:00 · 29.9323:00 · 29.93 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
    +64°

    Clear · feels like +60°

    Low / high
    +45°…+68°
    Precipitation
    0.00 in
    Wind
    5 mph NNE
    Cloud cover
    0%
    Humidity
    32%
    Pressure
    29.94 inHg
    00:00+48°—6 mphnorth wind, 6 mph62%100%
    01:00+48°—5 mphnorth wind, 5 mph62%100%
    02:00+47°—5 mphnorth wind, 5 mph64%21%
    03:00+46°—4 mphnorth wind, 4 mph64%57%
    04:00+46°—5 mphnorth wind, 5 mph64%44%
    05:00+46°—5 mphnorth wind, 5 mph63%32%
    06:00+45°—4 mphnorth wind, 4 mph64%71%
    07:00+46°—4 mphnorth wind, 4 mph62%100%
    08:00+51°—3 mphnorth wind, 3 mph54%19%
    09:00+55°—4 mphnorth wind, 4 mph46%14%
    10:00+58°—5 mphnorth wind, 5 mph40%6%
    11:00+61°—5 mphnorth wind, 5 mph36%0%
    12:00+64°—5 mphnorth wind, 5 mph32%0%
    13:00+66°—4 mphnorth wind, 4 mph30%0%
    14:00+67°—4 mphnorth wind, 4 mph28%6%
    15:00+68°—2 mphnorth wind, 2 mph27%26%
    16:00+68°—2 mphnorthwest wind, 2 mph27%52%
    17:00+67°—2 mphwest wind, 2 mph28%74%
    18:00+65°—3 mphnorthwest wind, 3 mph32%89%
    19:00+62°—4 mphnorth wind, 4 mph38%99%
    20:00+59°—6 mphnorth wind, 6 mph42%100%
    21:00+57°—5 mphnorth wind, 5 mph44%83%
    22:00+56°—4 mphnortheast wind, 4 mph45%56%
    23:00+55°—4 mphnortheast wind, 4 mph46%42%
    +68°+57°+45°
    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
    06:30
    Sunset
    19:25
    Day length
    12 h 55 min
    Sunshine hours
    12 h 4 min
    UV index
    6
    high
    Moon
    Waning crescent
    Moonrise
    01:48
    Moonset
    17:40

    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

    +11% in the windowMonday, September 7
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Minor01:18–02:18Moonrise
    • Major08:51–10:51Moon overhead
    • Minor17:10–18:10Moonset
    • 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?

    BiteGuide·From anglers’ reports

    What actually worked on this water

    Based on 9 verified catchesPeriod: 2019–2020

    This is a summary of anglers' reports, not a proven cause of the bite: conditions lining up does not mean they drove it.

    By fish species

    vertical axis — number of catches

    023
    32211
    Brown troutLargemouth bassSteelheadBlack crappieCutthroat trout
    By fish species
    ValueCatchesShare
    Brown trout333%
    Largemouth bass222%
    Steelhead222%
    Black crappie111%
    Cutthroat trout111%

    By month

    vertical axis — number of catches

    023
    111312
    JanMarAprAugSepDec
    By month
    ValueCatchesShare
    Jan111%
    Mar111%
    Apr111%
    Aug333%
    Sep111%
    Dec222%

    Air temperature, °F

    vertical axis — number of catches

    024
    2421
    32417786
    Air temperature, °F
    ValueCatchesShare
    32–39 °F222%
    41–48 °F444%
    77–84 °F222%
    86–93 °F111%

    Pressure, inHg

    vertical axis — number of catches

    035
    225
    27.9528.1528.35
    Pressure, inHg
    ValueCatchesShare
    27.95–28.11 inHg222%
    28.15–28.31 inHg222%
    28.35–28.50 inHg556%

    Wind direction

    8 catches have this data · vertical axis — number of catches

    023
    11231
    NSESWNW
    Wind direction
    ValueCatchesShare
    N113%
    SE113%
    S225%
    W338%
    NW113%

    Wind speed, mph

    vertical axis — number of catches

    036
    36
    04
    Wind speed, mph
    ValueCatchesShare
    0–2 mph333%
    4–7 mph667%