Fishing Report
Arnold Reservoir Fishing Report
Diamond Bar, CA
Lake conditions
Arnold Reservoir — 2026-11-07
Conditions overviewToday's conditions at this lake, computed from live weather and the moon.
- Season
- Fall
- Moon
- 3% illuminated, waningNew Moon
- Est. surface temp
- 76.7°F
- Pressure
- 30.02 inHgStable
Est. water temp
76.7°F
v1 estimate from air temperature — not a sensor reading
Air vs. last week
11°F warmer
71°F now vs 60°F this time last week
Measured air temperature at the nearest weather station — not water
Sun & moon
- Sunrise
- 6:16 AM
- Sunset
- 4:52 PM
- Moonrise
- 4:47 AM
- Moonset
- 3:44 PM
Sky, wind & pressuremidday · 12 PM
- Cloud cover
- 3%
- Precip chance
- 0%
- Wind
- 5 mph W
- Pressure
- 30.02 inHg Stable
Today's solunar periods
- Minor: 4:17 AM–5:17 AM
- Major: 9:19 AM–11:19 AM
- Minor: 3:14 PM–4:14 PM
- Major: 9:42 PM–11:42 PM
No bite score appears for this lake because no fish species is on record for it yet.
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Modeled from National Weather Service data, plus solunar and sun/moon times computed in-house. This is a computed report, not an eyewitness catch report.
33.992753, -117.786150
Est. water temp
76.7°F
v1 estimate from air temperature — not a sensor reading
Species on record
No species on record yet for this lake.
Suggest a species for this lake →Location
Arnold Reservoir · 33.9928, -117.7862
Map data © OpenFreeMap, OpenMapTiles, OpenStreetMap contributors
Nearby
Other lakes nearby
FAQ
Common questions
What fish are in Arnold Reservoir?
No fish species have been recorded for Arnold Reservoir yet. Check the live conditions to plan a trip on the surrounding water.
When's the best time to fish Arnold Reservoir?
No species are modeled for Arnold Reservoir yet, so there's no species-specific feeding window to name. The score still gives the light window 30% of its total, an input Bitespan grades "Well supported". Check today's bite forecast for Arnold Reservoir to see the best window for current conditions.
Where is Arnold Reservoir?
Arnold Reservoir is near Diamond Bar, CA, at 33.9928, -117.7862.
Plan your trip to Arnold Reservoir
Get the hour-by-hour bite forecast and the best times to fish Arnold Reservoir, scored against live National Weather Service weather for this exact spot — showing what every input contributed and how well the evidence supports it.