Loading…
Want to be notified exactly when to fish for rainbow trout here?
Rainbow stocking
Lowland lake · Snohomish County · 30.1 acres · 139 ft
2,700 rainbows on Apr 22
5 months agoArlington Hatchery
Fish per pound
Catchables · 9 oz each
1.8
Nothing new since Apr 22. Holdovers are bigger and warier than fresh stock.
2026 so far
2,700
77% of a normal year
Normal year
3,493
average of 11 seasons
Typical size
Catchables
9 oz each
Stocking season
Apr
when the truck comes
This year against a 11-season average
2026normal
Recent plants
| Date | Species | Number | Fish/lb | Size |
|---|---|---|---|---|
| Apr 22 | Rainbow | 2,700 | 1.8 | Catchables · 9 oz each |
| Apr 14 | Rainbow | 3,000 | 2.4 | Catchables · 7 oz each |
| Apr 25 | Rainbow | 2,057 | 2.2 | Catchables · 7 oz each |
| Apr 25 | Rainbow | 1,023 | 2.2 | Catchables · 7 oz each |
| Apr 19 | Rainbow | 3,000 | 2.5 | Catchables · 6 oz each |
| Apr 19 | Rainbow | 3,014 | 2.2 | Catchables · 7 oz each |
| Apr 19 | Rainbow | 50 | 0.50 | Trophies · 2 lb each |
| Apr 22 | Rainbow | 3,000 | 2.5 | Catchables · 6 oz each |
16 rainbow releases on record since 2015 · from WDFW's fish plants data, as published.
This lake on WDFWWDFW fishing prospects calendar
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainbow Trout | ||||||||||||
| Westslope Cutthroat Trout |
quiet → best this month
WDFW rates rainbow trout best in April through June.
WDFW draws one calendar per species for the whole state, so it shows the season's shape rather than this lake's own record. Check the rules for when each species is open here. This lake on WDFW
be the first to say how Lake Armstrong fished
No catch reports yet for this water.
Currently
58°
Clearfeels like 57°
Tue
Favorable
68° 54°
wind 7 kt · 12% rain
Wed
Favorable
75° 52°
wind 6 kt · 0% rain
Thu
Favorable
76° 53°
wind 5 kt · 0% rain
Fri
Favorable
74° 52°
wind 5 kt · 0% rain
Sat
Favorable
73° 51°
wind 6 kt · 0% rain
Sun
Favorable
73° 49°
wind 5 kt · 0% rain
Mon
Favorable
66° 49°
wind 5 kt · 6% rain
The current regulation for Lake Armstrong could not be confidently verified from a structured source, so this dashboard won't guess. Check the official WDFW sport fishing rules before fishing.
rules are shown exactly as published and cover every species at this location — they can change at any time, so always confirm with WDFW before fishingWant to know the best time to fish for rainbow trout this week at Lake Armstrong?
Sign in to viewRanked by fish counts, angler reports, rain, cloud and wind.
The counts, catch rates, conditions and weather on this page stay free.
Wind now
4mph
NW · gusting 9
Gusts · 12h
9mph
holding or building
wind mph gusts