Fishing Report
Arnold Reservoir Fishing Report
Diamond Bar, CA
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
79.5°F
v1 estimate from air temperature — not a sensor reading
Notes from anglers
Imported from GNIS. Nearest town: Diamond Bar (San Bernardino County, CA).
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 25% 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.