Riley Lake trout stocking
Snohomish County, Washington · lake
Riley Lake was last stocked 5 months ago (Apr 22, 2026). We have 3 stockings on record since Apr 23, 2025, 1 in the last 12 months (2,700 fish). Species stocked: rainbow trout.
River conditions
Nearest USGS gage: NF STILLAGUAMISH RIVER NEAR ARLINGTON, WA (8 km away, on a different stream or lake).
- Flow
- 168 cfs
- about normal for the last six weeks
- Gage height
- 1.36 ft
Latest reading Sep 25, 2026, 2:15 AM UTC. USGS data are provisional. Gage page at USGS.
Weather at Riley Lake
- Tonight50°FRain97% rain · wind 5 mph
- Friday65°FShowers And Thunderstorms100% rain · wind 3 to 7 mph
- Friday Night43°FLight Rain Likely72% rain · wind 3 to 8 mph
- Saturday67°FMostly Sunny3% rain · wind 0 to 3 mph
- Saturday Night41°FPartly Cloudy1% rain · wind 3 to 7 mph
- Sunday69°FMostly Sunny1% rain · wind 1 to 5 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Riley Lake stocked?
Stockings are spread across the year.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | |||||||||||
| 2025 | 1 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Rainbow trout | 3 | 5,692 | 1,897 |
Stocking history
| Date | Species | Fish | Pounds | Hatchery |
|---|---|---|---|---|
| Apr 22, 2026 | Rainbow trout | 2,700 | 1,500 | Arlington Hatchery |
| Apr 23, 2025 | Rainbow trout | 792 | 360 | Arlington Hatchery |
| Apr 23, 2025 | Rainbow trout | 2,200 | 1,000 | Arlington 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 Riley Lake?
Snohomish County, Washington. Approximate: the marker is the USGS place-name point for this water, not an agency location.
Stocked waters near Riley Lake
- Lake Cavanaughlake · 6 mistocked Sep 9, 2026
- Lake Armstronglake · 8 mistocked Apr 22, 2026
- Saddle Lakelake · 10 mistocked Aug 18, 2025
- Fortson Ponds (2)pond · 10 mistocked Apr 24, 2026
- Shelf Lakelake · 11 mistocked Jul 23, 2025
- Gee Point Lakelake · 14 mistocked Jun 20, 2026
- Lake Mcmurraylake · 14 mistocked Apr 22, 2026
- Bosworth Lakelake · 14 mistocked Apr 16, 2026
All stocked waters in Snohomish CountyStocked this week in Washington
Questions about Riley Lake
- When was Riley Lake last stocked?
- The latest reported stocking was Apr 22, 2026 (rainbow trout, 2,700 fish), according to Washington agency reports.
- How often is Riley Lake stocked?
- It was stocked 1 times in the last 12 months.
- What kind of trout are stocked in Riley Lake?
- Rainbow trout (3 stockings, 5,692 fish).