Langlois Lake trout stocking
King County, Washington · lake
Langlois Lake was last stocked 5 months ago (Apr 30, 2026). We have 6 stockings on record since Apr 10, 2025, 4 in the last 12 months (29,425 fish). Most stockings come in April. Species stocked: kokanee, rainbow trout.
River conditions
Nearest USGS gage: SNOQUALMIE RIVER NEAR CARNATION, WA (4 km away, on a different stream or lake).
- Flow
- 528 cfs
- about normal for the last six weeks
- Gage height
- 44.48 ft
Latest reading Sep 25, 2026, 3:15 AM UTC. USGS data are provisional. Gage page at USGS.
Weather at Langlois Lake
- Tonight51°FLight Rain90% rain · wind 0 mph
- Friday62°FShowers And Thunderstorms96% rain · wind 2 mph
- Friday Night45°FRain Likely then Mostly Cloudy72% rain · wind 1 to 5 mph
- Saturday63°FPartly Sunnywind 1 mph
- Saturday Night42°FMostly Cloudywind 1 mph
- Sunday64°FMostly Sunny1% rain · wind 1 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Langlois Lake stocked?
Most stockings come in April. Stocked 3 times in 2026, mostly in April, about every 20 days.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 3 | |||||||||||
| 2025 | 1 | 1 | 1 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Kokanee | 3 | 44,825 | 14,942 | |
| Rainbow trout | 3 | 9,713 | 3,238 |
Stocking history
| Date | Species | Fish | Pounds | Hatchery |
|---|---|---|---|---|
| Apr 30, 2026 | Kokanee | 20,000 | 45 | Chambers Cr Hatchery |
| Apr 10, 2026 | Rainbow trout | 3,200 | 1,600 | Tokul Cr Hatchery |
| Apr 7, 2026 | Rainbow trout | 1,400 | 700 | Tokul Cr Hatchery |
| Oct 21, 2025 | Kokanee | 4,825 | 101 | Tokul Cr Hatchery |
| May 1, 2025 | Kokanee | 20,000 | 41 | Chambers Cr Hatchery |
| Apr 10, 2025 | Rainbow trout | 5,113 | 2,045 | Tokul Cr Hatchery |
From Washington fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go.
Where is Langlois Lake?
King County, Washington. Approximate: the marker is the USGS place-name point for this water, not an agency location.
Stocked waters near Langlois Lake
- Moss Lakelake · 4 mistocked Jul 9, 2026
- Beaver Lakeslake · 6 mistocked Apr 8, 2026
- Lake Alicelake · 7 mistocked May 6, 2026
- Pine Lakelake · 8 mistocked Apr 13, 2026
- Lake Margaretlake · 9 mistocked Apr 9, 2026
- Lewis Creekstream · 11 mistocked May 27, 2025
- Cottage Lakelake · 12 mistocked Apr 14, 2026
- Sunday Lakelake · 14 mistocked Jul 29, 2026
All stocked waters in King CountyStocked this week in Washington
Questions about Langlois Lake
- When was Langlois Lake last stocked?
- The latest reported stocking was Apr 30, 2026 (kokanee, 20,000 fish), according to Washington agency reports.
- How often is Langlois Lake stocked?
- Stocked 3 times in 2026, mostly in April, about every 20 days. Across all years on record, most stockings come in April.
- What kind of trout are stocked in Langlois Lake?
- Kokanee (3 stockings, 44,825 fish); Rainbow trout (3 stockings, 9,713 fish).