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Forecast
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© 2026·AI-powered bite forecast
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United States / Washington / Franz Lake

Bite forecast: Franz Lake

  • 54 acres
Loading map…

Best fishing days for the next week

  1. SaturdaySeptember 5weather-based forecast
    64/100high activity

    Clear: 48–77 °F

  2. SundaySeptember 6weather-based forecast
    64/100high activity

    Partly cloudy: 55–81 °F

  3. MondaySeptember 7weather-based forecast
    58/100medium activity

    Partly cloudy: 59–86 °F

Franz Lake (Washington) — one of the area's fishing spots. About 22 ha 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.

Nearby rivers

  • Washougal River5 mi
  • West Fork Washougal River7 mi

Nearby water bodies

  • LakeBenson Lake3 mi
  • LakeWahkeena Rearing Lake3 mi
  • LakePalmer Lake5 mi
  • LakeGreenleaf Slough6 mi
  • LakeBass Lake7 mi
  • LakeCattail Lake7 mi
  • LakeKidney Lake7 mi
  • LakeGillette Lake8 mi
  • LakeSpring Lake8 mi
  • ReservoirBull Run Reservoir Number One8 mi
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?
Yellow perchCoho salmonSmallmouth bassWalleyeBrook troutCutthroat troutWhitefishBlack crappieLake troutSteelheadBluegillChannel catfishChinook salmonLargemouth bassRainbow trout

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. Pressure is dropping — this usually boosts the bite.

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

Pack transitional-season clothing — mornings and evenings are chilly. Rain is expected — don't forget a rain jacket or a waterproof shell.

Summary

An average day — best chances during peak windows.

How this forecast is calculated

Why this forecast

The computed water temperature is around 69 °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 °F69 °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 flat: it moves no more than 0.00 inHg over the day, so the weather isn't shifting today's bite.

Pressure through the day, 0.00 inHg change
00:00 · 29.6623:00 · 29.67 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
+65°

Partly cloudy · feels like +63°

Low / high
+53°…+70°
Precipitation
0.00 in
Wind
5 mph E
Cloud cover
79%
Humidity
62%
Pressure
29.68 inHg
00:00+67°—16 mphnorthwest wind, 16 mph48%100%
01:00+65°—15 mphnorthwest wind, 15 mph49%100%
02:00+64°—14 mphnorthwest wind, 14 mph51%90%
03:00+63°—11 mphnorthwest wind, 11 mph51%100%
04:00+63°—12 mphnorthwest wind, 12 mph46%100%
05:00+65°—8 mphnorthwest wind, 8 mph44%100%
06:00+61°0.06 in7 mphwest wind, 7 mph56%100%
07:00+60°—4 mphnorthwest wind, 4 mph60%100%
08:00+62°—3 mphnorthwest wind, 3 mph64%100%
09:00+63°—3 mpheast wind, 3 mph69%83%
10:00+62°—5 mphsoutheast wind, 5 mph84%47%
11:00+64°—8 mphsoutheast wind, 8 mph70%100%
12:00+65°—5 mpheast wind, 5 mph62%79%
13:00+69°—8 mphsouth wind, 8 mph45%100%
14:00+69°—15 mphsoutheast wind, 15 mph44%35%
15:00+70°—17 mphsouth wind, 17 mph36%100%
16:00+67°—15 mphsouth wind, 15 mph48%100%
17:00+66°—10 mphsouth wind, 10 mph51%100%
18:00+65°—11 mpheast wind, 11 mph58%100%
19:00+64°—4 mphnortheast wind, 4 mph59%100%
20:00+61°0.02 in4 mphnorthwest wind, 4 mph63%100%
21:00+56°—18 mphwest wind, 18 mph57%100%
22:00+54°—14 mphwest wind, 14 mph49%10%
23:00+53°—11 mphwest wind, 11 mph52%78%
+70°+62°+53°
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
06:21
Sunset
19:39
Day length
13 h 18 min
Sunshine hours
1 h 5 min
UV index
4
moderate
Moon
Waning gibbous
Moonrise
21:57
Moonset
13:10

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

+12% in the windowWednesday, September 2
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major04:10–06:10Moon overhead
  • Minor12:40–13:40Moonset
  • Major16:37–18:37Moon underfoot
  • Minor21:27–22:27Moonrise

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?