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Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
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United States / Wyoming / Heart Lake

Bite forecast: Heart Lake

  • 3.4 sq mi
Loading map…

Best fishing days for the next week

  1. WednesdaySeptember 9weather-based forecast
    74/100high activity

    Cloudy: 50–79 °F

Nearby rivers

  • Lewis River8 mi
  • Snake River9 mi

Nearby water bodies

  • LakeSheridan Lake2 mi
  • LakeBasin Creek Lake4 mi
  • LakeAster Lake4 mi
  • LakeOutlet Lake5 mi
  • LakeRiddle Lake7 mi
  • LakeLewis Lake8 mi
  • LakeDelusion Lake9 mi

Heart Lake (Wyoming) — a popular fishing spot. About 8.8 km² in area. 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.

ThursdaySeptember 10weather-based forecast
71/100high activity

Partly cloudy: 64–82 °F

  • FridaySeptember 11weather-based forecast
    70/100high activity

    Cloudy: 61–77 °F

  • Loading map…

    Catches

    Recorded 1 catch here. Most commonly caught: Cutthroat trout. Peak season: July.

    • Cutthroat trout
      Heart Lake
      73 °F9 mph
      Jul 14, 2019, 8:09 PM

    Bite calendar

    Saturday, September 5

    Aug 31 – Sep 6
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    BluegillChannel catfishBrook troutCarpLargemouth bassPikeSmallmouth bassWalleyeYellow perchBrown troutCutthroat troutWhitefishBlack crappieRainbow troutLake troutBurbot

    Black crappie

    4/10 · Weak

    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

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

    Gear

    It's a hot day — a hat, sunglasses, and plenty of water are a must. Winds will be strong — wind protection helps, and be careful if you're in a boat.

    Summary

    An average day — best chances during peak windows.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 66 °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 °F66 °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 0.06 inHg over the day — the bite usually settles down after a rise.

    Pressure through the day, 0.06 inHg change
    00:00 · 29.6823:00 · 29.75 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

    5 SepSaturday, September 5
    +75°

    Clear · feels like +66°

    Low / high
    +59°…+79°
    Precipitation
    0.00 in
    Wind
    17 mph SW
    Cloud cover
    0%
    Humidity
    20%
    Pressure
    29.83 inHg
    00:00+65°—15 mphsouthwest wind, 15 mph24%0%
    01:00+64°—15 mphsouthwest wind, 15 mph25%0%
    02:00+64°—15 mphsouth wind, 15 mph25%0%
    03:00+63°—15 mphsouthwest wind, 15 mph25%0%
    04:00+63°—16 mphsouth wind, 16 mph25%0%
    05:00+62°—17 mphsouthwest wind, 17 mph27%0%
    06:00+61°—17 mphsouthwest wind, 17 mph28%0%
    07:00+59°—14 mphsouthwest wind, 14 mph30%0%
    08:00+63°—15 mphsouthwest wind, 15 mph29%0%
    09:00+67°—15 mphsouthwest wind, 15 mph25%0%
    10:00+70°—16 mphsouthwest wind, 16 mph20%0%
    11:00+73°—16 mphsouthwest wind, 16 mph18%1%
    12:00+75°—17 mphsouthwest wind, 17 mph20%0%
    13:00+76°—20 mphsouthwest wind, 20 mph23%84%
    14:00+78°—17 mphsouthwest wind, 17 mph22%100%
    15:00+79°—14 mphsouthwest wind, 14 mph22%100%
    16:00+79°—18 mphsouthwest wind, 18 mph20%73%
    17:00+79°—18 mphsouthwest wind, 18 mph19%0%
    18:00+78°—16 mphsouthwest wind, 16 mph17%67%
    19:00+75°—13 mphsouthwest wind, 13 mph16%0%
    20:00+70°—13 mphsouthwest wind, 13 mph15%0%
    21:00+68°—11 mphsouthwest wind, 11 mph15%0%
    22:00+67°—12 mphsouthwest wind, 12 mph15%0%
    23:00+66°—12 mphsouthwest wind, 12 mph16%0%
    +79°+69°+59°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Saturday, September 5
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:38
    Sunset
    19:37
    Day length
    12 h 59 min
    Sunshine hours
    12 h
    UV index
    6
    high
    Moon
    Waning crescent
    Moonrise
    —
    Moonset
    16:42

    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 windowSaturday, September 5
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major07:20–09:20Moon overhead
    • Minor16:12–17:12Moonset
    • Major19:51–21:51Moon 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?