Fishing Report
Grassy Hills Reservoir Fishing Report
Castleford, ID
Lake conditions
Grassy Hills Reservoir — 2026-11-12
Conditions overviewToday's conditions at this lake, computed from live weather and the moon.
- Season
- Fall
- Moon
- 12% illuminated, waxingWaxing Crescent
- Est. surface temp
- 58.6°F
- Pressure
- 29.99 inHgFalling
Est. water temp
58.6°F
v1 estimate from air temperature — not a sensor reading
Air vs. last week
13°F warmer
64°F now vs 51°F this time last week
Measured air temperature at the nearest weather station — not water
Sun & moon
- Sunrise
- 7:27 AM
- Sunset
- 5:21 PM
- Moonrise
- 11:01 AM
- Moonset
- 7:32 PM
Sky, wind & pressuremidday · 2 PM
- Cloud cover
- 48%
- Precip chance
- 0%
- Wind
- 7 mph SSE
- Pressure
- 29.99 inHg Falling
Today's solunar periods
- Major: 1:50 AM–3:50 AM
- Minor: 10:31 AM–11:31 AM
- Major: 2:16 PM–4:16 PM
- Minor: 7:02 PM–8:02 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.
42.213601, -115.127742
Est. water temp
58.6°F
v1 estimate from air temperature — not a sensor reading
Species on record
No species on record yet for this lake.
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Every species with enough Idaho waters on fish-agency record to have its own page here.
Location
Grassy Hills Reservoir · 42.2136, -115.1277
Map data © OpenFreeMap, OpenMapTiles, OpenStreetMap contributors
Nearby
Other lakes nearby
FAQ
Common questions
What fish are in Grassy Hills Reservoir?
No fish species have been recorded for Grassy Hills Reservoir yet. Check the live conditions to plan a trip on the surrounding water.
When's the best time to fish Grassy Hills Reservoir?
No species are modeled for Grassy Hills 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 Grassy Hills Reservoir to see the best window for current conditions.
Where is Grassy Hills Reservoir?
Grassy Hills Reservoir is near Castleford, ID, at 42.2136, -115.1277.
Plan your trip to Grassy Hills Reservoir
Get the hour-by-hour bite forecast and the best times to fish Grassy Hills Reservoir, scored against live National Weather Service weather for this exact spot — showing what every input contributed and how well the evidence supports it.