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United States / Idaho / Largemouth bass

Largemouth bass bite in Idaho

Recorded 13 catches of Largemouth bass in Idaho. Most active — February–October. A day-by-day bite calendar for Largemouth bass.

Largemouth bass bite forecast in Idaho today

Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    75/100high activity

    Cloudy: 41–54 °F

    Best fishing time: 19:00–22:00

  2. WednesdaySeptember 2weather-based forecast
    48/100medium activity

    Cloudy: 46–57 °F

    Best fishing time: 06:00–09:00

  3. MondaySeptember 7weather-based forecast
    46/100medium activity

    Drizzle: 45–63 °F

    Best fishing time: 06:00–09:00

Map of waters and catches

Loading map…

Where it's caught

  • Hells Canyon Reservoir2 catches
  • Devil Creek Reservoir2 catches
  • Dierkes Lake2 catches
  • Riley Creek2 catches
  • Brownlee Reservoir1 catch
  • Deep Creek Reservoir1 catch
  • Lake Lowell1 catch

Catches

  • Largemouth bass
    Hells Canyon Reservoir
    81 °F4 mph
    Aug 14, 2020
  • Largemouth bass
    Hells Canyon Reservoir

Other fish in Idaho

  • Rainbow trout6 catches
  • Smallmouth bass5 catches
  • Steelhead4 catches
  • Brown trout3 catches
  • Yellow perch2 catches

Largemouth bass 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?

Hourly activity

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

The bite is moderate — fish feed in short bursts. Pressure is dropping — this usually boosts the bite.

Peak bite hours

Best time — 06:00–08:00 (dawn bite) and 20:00–22:00 (dusk bite).

Tactics

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

Lures

In clear water, natural colors work best: soft plastic or crankbait.

Gear

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

Summary

An average day — best chances during peak windows.

Why this forecast

The computed water temperature is around 55 °F — colder than the 64–82 °F comfort range for Largemouth bass: the fish conserves energy and takes more cautiously.

Computed water temperature by month; the green band is the 64–82 °F comfort rangecomfort 64–82 °F55 °F
JFMAMJJASOND

Largemouth bass 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 Largemouth bass feeds0:0012:0024:00

Pressure is dropping 0.06 inHg over the day — fish are usually more active ahead of a weather change.

Pressure through the day, 0.06 inHg change
00:00 · 29.7723:00 · 29.70 inHg

September is peak season for Largemouth bass here.

JFMAMJJASOND

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

2 SepWednesday, September 2
+47°

Cloudy · feels like +38°

Low / high
+46°…+57°
Precipitation
0.00 in
Wind
15 mph W
Cloud cover
100%
Humidity
81%
Pressure
29.74 inHg
00:00+49°—4 mpheast wind, 4 mph77%99%
01:00+47°—10 mphsoutheast wind, 10 mph82%99%
02:00+47°—13 mphsoutheast wind, 13 mph73%82%
03:00+47°—12 mphsoutheast wind, 12 mph73%100%
04:00+47°—11 mphsoutheast wind, 11 mph71%95%
05:00+46°—11 mphsoutheast wind, 11 mph72%92%
06:00+46°—11 mphsoutheast wind, 11 mph73%99%
07:00+46°—13 mphsoutheast wind, 13 mph70%100%
08:00+47°—13 mphsoutheast wind, 13 mph71%100%
09:00+49°—13 mphsoutheast wind, 13 mph72%100%
10:00+52°—12 mphsouth wind, 12 mph70%100%
11:00+50°—16 mphwest wind, 16 mph71%100%
12:00+47°—15 mphwest wind, 15 mph81%100%
13:00+54°—12 mphsouthwest wind, 12 mph57%0%
14:00+55°—14 mphsouthwest wind, 14 mph39%100%
15:00+57°—17 mphsouthwest wind, 17 mph26%21%
16:00+57°—18 mphsouthwest wind, 18 mph25%45%
17:00+57°—18 mphsouthwest wind, 18 mph26%79%
18:00+55°—17 mphsouthwest wind, 17 mph31%95%
19:00+54°—15 mphsouthwest wind, 15 mph33%100%
20:00+51°—12 mphsouthwest wind, 12 mph35%100%
21:00+49°—14 mphsouthwest wind, 14 mph36%95%
22:00+48°—15 mphsouthwest wind, 15 mph41%100%
23:00+47°—13 mphsouthwest wind, 13 mph47%100%
+57°+51°+46°
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
06:58
Sunset
20:11
Day length
13 h 13 min
Sunshine hours
7 h
UV index
2
low
Moon
Waning gibbous
Moonrise
22:25
Moonset
13:36

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 windowWednesday, September 2
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major04:36–06:36Moon overhead
  • Minor13:06–14:06Moonset
  • Major17:04–19:04Moon underfoot
  • Minor21:55–22:55Moonrise

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?
90 °F
7 mph
Aug 29, 2019
  • Largemouth bass
    Devil Creek Reservoir
    57 °F7 mph
    Jun 22, 2019
  • Largemouth bass
    Devil Creek Reservoir
    73 °F4 mph
    Jun 13, 2019
  • Largemouth bass
    Brownlee Reservoir
    66 °F4 mph
    May 26, 2018
  • Largemouth bass
    Idaho, Elmore County
    43 °F16 mph
    Mar 02, 2018
  • Largemouth bass
    Idaho, Ada County
    30 °F13 mph
    Feb 24, 2018
  • Largemouth bass
    Dierkes Lake
    86 °F7 mph
    Jul 28, 2017, 7:57 PM
  • Black crappie1 catch
  • Cutthroat trout1 catch
  • Walleye1 catch