Fishing Report
Alta Hill Reservoir Fishing Report
Grass Valley, CA
Lake conditions
Alta Hill Reservoir — 2026-11-09
Conditions overviewToday's conditions at this lake, computed from live weather and the moon.
- Season
- Fall
- Moon
- 1% illuminated, waxingNew Moon
- Est. surface temp
- 60.5°F
- Pressure
- 30.16 inHgStable
Est. water temp
60.5°F
v1 estimate from air temperature — not a sensor reading
Air vs. last week
12°F warmer
66°F now vs 54°F this time last week
Measured air temperature at the nearest weather station — not water
Sun & moon
- Sunrise
- 6:41 AM
- Sunset
- 4:54 PM
- Moonrise
- 7:19 AM
- Moonset
- 4:50 PM
Sky, wind & pressuremidday · 5 PM
- Cloud cover
- 49%
- Precip chance
- 0%
- Wind
- 0 mph
- Pressure
- 30.16 inHg Stable
Today's solunar periods
- Minor: 6:49 AM–7:49 AM
- Major: 11:07 AM–1:07 PM
- Minor: 4:20 PM–5:20 PM
- Major: 11:32 PM–1:32 AM
No bite score appears for this lake because no fish species is on record for it yet.
Find lakes with a bite score →Free — no account, no app
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.
39.231123, -121.065731
Est. water temp
60.5°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
Alta Hill Reservoir · 39.2311, -121.0657
Map data © OpenFreeMap, OpenMapTiles, OpenStreetMap contributors
Nearby
Other lakes nearby
FAQ
Common questions
What fish are in Alta Hill Reservoir?
No fish species have been recorded for Alta Hill Reservoir yet. Check the live conditions to plan a trip on the surrounding water.
When's the best time to fish Alta Hill Reservoir?
No species are modeled for Alta Hill 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 Alta Hill Reservoir to see the best window for current conditions.
Where is Alta Hill Reservoir?
Alta Hill Reservoir is near Grass Valley, CA, at 39.2311, -121.0657.
Plan your trip to Alta Hill Reservoir
Get the hour-by-hour bite forecast and the best times to fish Alta Hill Reservoir, scored against live National Weather Service weather for this exact spot — showing what every input contributed and how well the evidence supports it.