Fishing Report
Grassy Lake Reservoir Fishing Report
Alta, WY
Lake conditions
Grassy Lake 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
- 46.3°F
- Pressure
- —Unknown
Est. water temp
46.3°F
v1 estimate from air temperature — not a sensor reading
Air vs. last week
15°F warmer
60°F now vs 45°F this time last week
Measured air temperature at the nearest weather station — not water
Sun & moon
- Sunrise
- 7:14 AM
- Sunset
- 4:59 PM
- Moonrise
- 10:52 AM
- Moonset
- 7:05 PM
Sky, wind & pressuremidday · 3 PM
- Cloud cover
- 36%
- Precip chance
- 0%
- Wind
- 0 mph
- Pressure
- — Unknown
Today's solunar periods
- Major: 1:32 AM–3:32 AM
- Minor: 10:22 AM–11:22 AM
- Major: 1:58 PM–3:58 PM
- Minor: 6:35 PM–7:35 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.
44.127193, -110.807056
Est. water temp
46.3°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
Grassy Lake Reservoir · 44.1272, -110.8071
Map data © OpenFreeMap, OpenMapTiles, OpenStreetMap contributors
Nearby
Other lakes nearby
FAQ
Common questions
What fish are in Grassy Lake Reservoir?
No fish species have been recorded for Grassy Lake Reservoir yet. Check the live conditions to plan a trip on the surrounding water.
When's the best time to fish Grassy Lake Reservoir?
No species are modeled for Grassy Lake 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 Lake Reservoir to see the best window for current conditions.
Where is Grassy Lake Reservoir?
Grassy Lake Reservoir is near Alta, WY, at 44.1272, -110.8071.
Plan your trip to Grassy Lake Reservoir
Get the hour-by-hour bite forecast and the best times to fish Grassy Lake Reservoir, scored against live National Weather Service weather for this exact spot — showing what every input contributed and how well the evidence supports it.