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Forecast
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© 2026·AI-powered bite forecast
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United States / Oregon / Bull Run Reservoir Number One

Bite forecast: Bull Run Reservoir Number One

  • 405 acres
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Best fishing days for the next week

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

    Partly cloudy: 48–70 °F

Bull Run Reservoir Number One (Oregon) — a spot well known among anglers. About 1.6 km² in area. Here you'll find a bite prediction — when fish are active and which hours give the best chances, adjusted for weather and pressure.

Nearby rivers

  • Bull Run River3 mi
  • South Fork Bull Run River3 mi
  • Little Sandy River6 mi
  • Sandy River8 mi

Nearby water bodies

  • ReservoirBull Run Reservoir Number Two4 mi
  • LakeGoodfellow Lakes6 mi
  • LakeGoodfellow Lakes6 mi
  • LakePalmer Lake6 mi
  • LakeGoodfellow Lakes7 mi
  • LakeBenson Lake7 mi
  • LakeWahkeena Rearing Lake7 mi
  • LakeFranz Lake8 mi
  • LakeHichman Lake8 mi
  • LakeBlue Lake9 mi
SundaySeptember 6weather-based forecast
74/100high activity

Cloudy: 48–64 °F

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

    Cloudy: 43–54 °F

  • Loading map…

    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
    22:01
    Moonset
    13:06

    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

    +15% in the windowWednesday, September 2
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major04:10–06:10Moon overhead
    • Minor12:36–13:36Moonset
    • Major16:37–18:37Moon underfoot
    • Minor21:31–22:31Moonrise

    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?