Fishing report
Crystal Lake Muskellunge Fishing Report
Rhinelander, WI
Modeled from live National Weather Service data as of Aug 8, 2026 at 5:44 AM CDT, plus solunar and sun/moon times computed in-house. This is a computed report, not an eyewitness catch report.
Crystal Lake has no state survey naming Muskellunge. Its presence is an estimate inferred from 8 confirmed lakes within 40 miles — not a record of a catch.
Max depth
43 ft
Deepest measurement on record
Max depth: Stachelek et al. (2021), LAGOS-US DEPTH v1.0, Environmental Data Initiative (CC BY 4.0)
Overall rating
Muskellunge at Crystal Lake — 2026-08-08
Good · 66/100Best window: 8 PM (Excellent · 82/100)
Some conditions data (cloud cover or barometric pressure) was unavailable from the weather service for this day — the rating above reflects only what was available.
- Season
- Summer
- Moon
- 24% illuminated, waningWaning Crescent
- Est. surface temp
- 68.1°F
- Pressure
- 29.99 inHgUnknown
Est. water temp
68.1°F
v1 estimate from air temperature — not a sensor reading
Below Muskellunge's 75-80°F range
Sun & moon
- Sunrise
- 5:49 AM
- Sunset
- 8:16 PM
- Moonrise
- 12:30 AM
- Moonset
- 5:34 PM
Sky, wind & pressureat best window · 8 PM
- Cloud cover
- 21%
- Precip chance
- 1%
- Wind
- 2 mph WSW
- Pressure
- 29.99 inHg Unknown
Species context
Why this score
Good (66/100) for Muskellunge: water is estimated at 68.1°F, below Muskellunge's 75-80°F optimal range. Best window: Dusk — boosts feeding activity by about 31%, one of their peak feeding windows. That hour also overlaps a major solunar period. 29.99 inHg and stable pressure modeled flat — no change from this fish's baseline. Calm (0-5 mph) wind modeled flat — no change from this fish's baseline.
What's driving the 8 PM score
Light window (dusk) is doing the most for this score. The score gives up the most on water temperature — 68.1°F estimated, about 18.4 points below its best.
- Water temperature · neutral
- Light window · helping
- Solunar period · helping
- Barometric pressure · helping
- Wind · helping
Show the numbers behind this
Water temperature: 68.1°F estimated
21.6 of 40 pts
Optimal range 75-80°F
Well supportedWater temperature governs a cold-blooded fish's metabolism, so it is the largest term in the model (Christie & Regier 1988). The figure is a thermal-lag estimate built from forecast air temperature and the time of year — not a sensor reading, and not this lake's actual measured water.
Light window: Dusk
25 of 25 pts
Boosts feeding activity by about 31%
Well supportedLow-light feeding windows are the strongest timing signal inside a single day. How much each window is worth is this species' own cited response, sourced in its model file, not a generic curve.
Solunar period: Major period
15 of 15 pts
Not supported by testingPeer-reviewed testing of North American freshwater fisheries found no significant relationship between solunar values, lunar phase or lunar illumination and catch rates (SN Applied Sciences, 2023) — air temperature predicted catch better than any solunar table tested. It is shown because anglers expect it, and it is shown separately so you can discount it. Its weight is under owner review.
Barometric pressure: Stable
10 of 10 pts
Modeled flat — no change from this fish's baseline
ContestedThe barometric effect is real to most anglers but small and contested in the literature — several of the species studies cited in this model report null results — so it carries one of the smallest weights here.
Wind: Calm (0-5 mph)
10 of 10 pts
Modeled flat — no change from this fish's baseline
Moderately supportedWind stacks forage on windward structure, but both the size and the direction of the effect depend on the species and the water, so it carries a modest weight.
Then the whole score is scaled
Season: Summer — ×1.00 (100% of the ungated score)
How catchable Muskellunge are at this point in the year. This scales the whole score rather than competing with the factors above — a fish that is dormant this time of year cannot score well no matter how good the hour looks.
Weather front: No clear front — ×1.00 (100% of the ungated score)
A multi-hour frontal pattern read from the day's forecast trajectory. No front is classified today, so this changes nothing and the single-reading pressure factor above does its normal job.
Those five factors add up to 81.6 of 100 points, and the two multipliers above take that to 82. The weights are v1 tuning constants under owner review — they are shown here rather than hidden so you can weigh them against your own judgement.
What this score does not know
- Water clarity. We have no source for it and do not estimate it.
- Measured water temperature. The figure in the breakdown is a model over forecast air temperature, not a reading from a buoy or a probe.
- Baitfish and forage activity.
- How much fishing pressure this water has had.
- Where the fish actually are. Depth bands are the species' published seasonal ranges, not an observation of this lake.
- What anyone actually caught. No catch reports feed this score.
Conditions read from the National Weather Service as of Aug 8, 2026 at 5:44 AM CDT. Solunar periods and sun/moon times are computed, not fetched.
When best caught
It's currently summer. Muskellunge typically hold 6-20 ft deep this time of year — at an estimated 68.1°F, this looks like a slower time of year to target them, since water temp is outside their optimal range.
Current depth
6-20 ft
This is the seasonal depth band from the species model — relative to this species' typical behavior, not this lake's actual structure. True depth relative to this lake's bottom contours needs lake bathymetry (tracked in issue #175).
Today's solunar periods
- Minor: 12:00 AM–1:00 AM
- Major: 8:00 AM–10:00 AM
- Minor: 5:04 PM–6:04 PM
- Major: 8:32 PM–10:32 PM
Best times
When do muskellunge feed during the day?
Muskellunge feed most actively at Dusk, when activity runs about 50% above the daily average across all four light windows.
- Dawn0.75x
Suppresses feeding activity by about 25%.
- Daytime0.94x
Suppresses feeding activity by about 6%.
- Dusk1.31x
Boosts feeding activity by about 31%.
- Night0.50x
Suppresses feeding activity by about 50%.
Hour by hour
Hourly bite forecast
| Hour | Bite score | Rating | Light | Wind |
|---|---|---|---|---|
| 4 AM | 56 | Fair | Night | 3 mph NW |
| 5 AM | 56 | Fair | Night | 3 mph WNW |
| 6 AM | 60 | Good | Dawn | 3 mph WNW |
| 7 AM | 63 | Good | Day | 5 mph WNW |
| 8 AM | 74 | Good | Day | 5 mph WNW |
| 9 AM | 74 | Good | Day | 6 mph WNW |
| 10 AM | 74 | Good | Day | 7 mph WNW |
| 11 AM | 63 | Good | Day | 8 mph WNW |
| 12 PM | 63 | Good | Day | 8 mph WNW |
| 1 PM | 63 | Good | Day | 8 mph WNW |
| 2 PM | 63 | Good | Day | 8 mph WNW |
| 3 PM | 63 | Good | Day | 8 mph WNW |
| 4 PM | 63 | Good | Day | 8 mph WNW |
| 5 PM | 68 | Good | Day | 7 mph W |
| 6 PM | 68 | Good | Day | 5 mph W |
| 7 PM | 64 | Good | Day | 3 mph W |
| 8 PM | 82 | Excellent | Dusk | 2 mph WSW |
| 9 PM | 82 | Excellent | Dusk | 2 mph SW |
| 10 PM | 66 | Good | Night | 3 mph SW |
| 11 PM | 56 | Fair | Night | 3 mph SW |
Where to find Muskellunge right now
Typical Summer depth: 6-20 ft
Muskellunge feed most actively at Dusk, when activity runs about 50% above the daily average across all four light windows.
Crystal Lake's deepest measurement on record is 43 ft — read the depth bands above against that. It is the deepest point someone actually measured on this water, not a contour survey, so deeper water may exist and there is no depth map to check it against.
Plan a Muskellunge trip to Crystal Lake
Change the date, compare species, or check the week ahead in the live tool.
Other species on record at Crystal Lake
FAQ
Common questions
Are there Muskellunge in Crystal Lake?
Crystal Lake has no state survey naming Muskellunge. Its presence is an estimate inferred from 8 confirmed lakes within 40 miles — not a record of a catch.
When do Muskellunge bite at Crystal Lake?
Muskellunge feed most actively at Dusk, when activity runs about 50% above the daily average across all four light windows. Today's report above scores every hour of the local day against live weather for Crystal Lake, and shows what each input contributed alongside how well the evidence supports it.
How deep should you fish for Muskellunge at Crystal Lake?
Typical Muskellunge depth by season: Pre-Spawn 2-6 ft, Spawn 0-3 ft, Post-Spawn 4-10 ft, Summer 6-20 ft, Fall 8-25 ft, Winter 8-20 ft. These bands come from published fisheries data for the species, not from a survey of Crystal Lake itself.