Where to fish

  • Forecast
  • Catches

Mine

  • Favorites

Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
Forecast
AboutHow the forecast worksWhere fish livePrivacyTerms[email protected]
© 2026·AI-powered bite forecast
0.1.0+2161 · b4069346

We use cookies for analytics and advertising. Cookies necessary for the site to function are always kept. Learn more

United States / Oregon / Hells Canyon Reservoir

Bite forecast: Hells Canyon Reservoir

Loading map…

Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    81/100high activity

    Clear: 46–70 °F

Loading map…

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
SundaySeptember 6weather-based forecast
74/100high activity

Clear: 46–70 °F

  • ThursdaySeptember 3weather-based forecast
    68/100high activity

    Cloudy: 39–52 °F

  • Bite calendar

    Wednesday, September 2

    Aug 31 – Sep 6
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    Coho salmonLake troutBrook troutCutthroat troutSmallmouth bassSteelheadWalleyeWhitefishBlack crappieYellow perchChinook salmonRainbow troutChannel catfishLargemouth bassBluegill

    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. A thunderstorm is possible: activity rises before the front and drops after.

    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

    The water's turning murky — go with bright, noisy lures: small jig or minnow bait.

    Gear

    Bring a warm jacket — it's noticeably colder on the water than on shore. A thunderstorm is possible — bring a rain jacket, and pack up at the first rumble of thunder.

    Summary

    An average day — best chances during peak windows.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 60 °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 °F60 °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 rising 0.15 inHg over the day — the bite usually settles down after a rise.

    Pressure through the day, 0.15 inHg change
    00:00 · 29.7423:00 · 29.88 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

    2 SepWednesday, September 2
    +53°

    Drizzle · feels like +41°

    Low / high
    +40°…+56°
    Precipitation
    0.02 in
    Wind
    22 mph SW
    Cloud cover
    100%
    Humidity
    56%
    Pressure
    29.78 inHg
    00:00+53°—7 mphnorth wind, 7 mph70%100%
    01:00+52°—5 mphnorthwest wind, 5 mph72%100%
    02:00+50°—3 mphnorthwest wind, 3 mph75%100%
    03:00+52°—3 mphnorthwest wind, 3 mph72%100%
    04:00+51°—4 mphwest wind, 4 mph78%100%
    05:00+51°—4 mphnorthwest wind, 4 mph77%100%
    06:00+50°—5 mphsouthwest wind, 5 mph76%70%
    07:00+49°—7 mphsouth wind, 7 mph78%85%
    08:00+50°—10 mphsouthwest wind, 10 mph76%98%
    09:00+50°—11 mphsouthwest wind, 11 mph68%100%
    10:00+53°—15 mphsouthwest wind, 15 mph59%100%
    11:00+56°—22 mphsouthwest wind, 22 mph52%100%
    12:00+53°0.02 in22 mphsouthwest wind, 22 mph56%100%
    13:00+49°0.07 in19 mphsouthwest wind, 19 mph85%100%
    14:00+49°0.09 in18 mphsouthwest wind, 18 mph88%100%
    15:00+48°0.14 in15 mphsouthwest wind, 15 mph90%100%
    16:00+49°0.14 in17 mphsouthwest wind, 17 mph91%100%
    17:00+49°0.09 in16 mphsouthwest wind, 16 mph90%100%
    18:00+49°0.20 in15 mphsouthwest wind, 15 mph94%100%
    19:00+46°0.04 in13 mphnorthwest wind, 13 mph89%100%
    20:00+44°0.03 in12 mphwest wind, 12 mph91%100%
    21:00+43°—8 mphsouthwest wind, 8 mph91%100%
    22:00+43°—13 mphwest wind, 13 mph86%84%
    23:00+40°—6 mphsouthwest wind, 6 mph88%0%
    +56°+48°+40°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Wednesday, September 2
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:24
    Sunset
    19:34
    Day length
    13 h 10 min
    Sunshine hours
    1 h 28 min
    UV index
    3
    moderate
    Moon
    Waning gibbous
    Moonrise
    21:40
    Moonset
    12:45

    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

    +14% in the windowWednesday, September 2
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major03:49–05:49Moon overhead
    • Minor12:15–13:15Moonset
    • Major16:17–18:17Moon underfoot
    • Minor21:10–22:10Moonrise

    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%