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Where to fish

  • Forecast
  • Catches

Mine

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Forecast
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© 2026·AI-powered bite forecast
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United States / Oregon / Wirth Lake

Bite forecast: Wirth Lake

  • 19 acres
Loading map…

Best fishing days for the next week

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

    Clear: 46–70 °F

  2. SundaySeptember 6weather-based forecast
    74/100high activity

    Clear: 46–70 °F

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

    Cloudy: 39–52 °F

Nearby towns

  • Salem3 mi

Wirth Lake (Oregon) — a spot well known among anglers. About 8 ha in area. The town of Salem is nearby. Here you'll find a bite prediction — when fish are active and which hours give the best chances, adjusted for weather and pressure.

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Nearby rivers

  • Willamette Slough3 mi

Nearby water bodies

  • LakeBluegill Lake0.4 mi
  • LakeMission Lake0.8 mi
  • PondFairview Wetlands1 mi
  • LakeStone Quarry Lake1 mi
  • PondWalling Pond2 mi
  • ReservoirWilla Lake3 mi
  • LakeBerger Lake3 mi
  • LakeTurner Lake4 mi
  • LakeWaldo Lake Reservoir5 mi
  • ReservoirRiverbed Pond6 mi

Bite calendar

Aug 31 – Sep 6
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?
Coho salmonBrook troutLake troutCutthroat troutSmallmouth bassSteelheadWalleyeWhitefishYellow perchBlack crappieChinook salmonRainbow troutLargemouth bassBluegillChannel catfish

Black crappie

7/10 · Good

Hourly activity

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

The bite is strong — fish are active. 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

Bring a warm jacket — it's noticeably colder on the water than on shore. Rain is expected — don't forget a rain jacket or a waterproof shell.

Summary

Worth going — it's a productive day.

How this forecast is calculated

Why this forecast

The computed water temperature is around 58 °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 °F58 °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 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 · 29.8823:00 · 29.81 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

3 SepThursday, September 3
+53°

Drizzle · feels like +47°

Low / high
+37°…+55°
Precipitation
0.00 in
Wind
8 mph SSW
Cloud cover
100%
Humidity
52%
Pressure
29.78 inHg
00:00+39°—5 mphsouthwest wind, 5 mph88%12%
01:00+39°—4 mphsouth wind, 4 mph88%100%
02:00+39°—8 mphsouth wind, 8 mph90%18%
03:00+38°—6 mphsouth wind, 6 mph87%1%
04:00+38°—6 mphsouth wind, 6 mph89%86%
05:00+38°—6 mphsouth wind, 6 mph89%13%
06:00+37°—6 mphsouth wind, 6 mph92%58%
07:00+38°—6 mphsouth wind, 6 mph94%100%
08:00+41°—9 mphsouthwest wind, 9 mph88%86%
09:00+43°0.01 in7 mphsouthwest wind, 7 mph85%100%
10:00+45°0.00 in5 mphsouth wind, 5 mph80%100%
11:00+50°0.01 in7 mphsouthwest wind, 7 mph65%99%
12:00+53°0.00 in8 mphsouthwest wind, 8 mph52%100%
13:00+53°0.00 in9 mphsouthwest wind, 9 mph54%100%
14:00+55°0.01 in9 mphsouthwest wind, 9 mph49%100%
15:00+54°0.02 in11 mphsouth wind, 11 mph55%100%
16:00+50°0.02 in12 mphsouth wind, 12 mph71%100%
17:00+47°0.05 in6 mphsouthwest wind, 6 mph80%100%
18:00+47°0.01 in2 mphwest wind, 2 mph79%100%
19:00+47°—1 mphwest wind, 1 mph78%100%
20:00+44°—2 mphnorth wind, 2 mph87%84%
21:00+44°—2 mphnorth wind, 2 mph87%100%
22:00+44°—3 mphnortheast wind, 3 mph85%100%
23:00+45°0.01 in2 mpheast wind, 2 mph85%100%
+55°+46°+37°
Weather throughout the day
0:006:0012:0018:0023:00

Sun and moon

Thursday, September 3
The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
DaylightMoon above the horizon
Sunrise
06:25
Sunset
19:32
Day length
13 h 7 min
Sunshine hours
7 h 8 min
UV index
4
moderate
Moon
Last quarter
Moonrise
22:48
Moonset
14:28

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 windowThursday, September 3
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major05:11–07:11Moon overhead
  • Minor13:58–14:58Moonset
  • Major17:40–19:40Moon underfoot
  • Minor22:18–23:18Moonrise

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?