Grotto Lake trout stocking
King County, Washington · lake · about 3,808 ft elevation
Grotto Lake was last stocked 24 months ago (Oct 12, 2024). We have 2 stockings on record since Aug 23, 2019. Species stocked: rainbow trout.
- Number 94 of 194 stocked waters in King County by stocking days.
- Stocked less often than most Washington waters on our record.
River conditions
Nearest USGS gage: SOUTH FORK SKYKOMISH RIVER AT SKYKOMISH, WA (7 km away, on a different stream or lake).
- Flow
- 215 cfs
- about normal for the last six weeks
- Gage height
- 17.15 ft
Latest reading Sep 29, 2026, 1:00 AM UTC. USGS data are provisional. Gage page at USGS.
Weather at Grotto Lake
- Tonight45°FRain86% rain · wind 8 mph
- Tuesday48°FRain100% rain · wind 5 to 9 mph
- Tuesday Night40°FRain then Mostly Cloudy81% rain · wind 3 to 13 mph
- Wednesday53°FMostly Sunny3% rain · wind 1 to 5 mph
- Wednesday Night43°FPartly Cloudy10% rain · wind 3 to 9 mph
- Thursday56°FSlight Chance Light Rain19% rain · wind 2 to 7 mph
Forecast from the National Weather Service for this location, refreshed hourly.
What is stocked
| Species | Stockings | Fish | Fish per stocking |
|---|---|---|---|
| Rainbow trout | 2 | 240 | 120 |
Stocking history
20241 stocking · 120 fish
| Date | Species | Fish | Since previous | Hatchery |
|---|---|---|---|---|
Oct 12Latest Saturday | Rainbow trout | 120 | 1877 days | Tokul Cr Hatchery |
20191 stocking · 120 fish
| Date | Species | Fish | Since previous | Hatchery |
|---|---|---|---|---|
Aug 23 Friday | Rainbow trout | 120 | 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. Seasons and limits: Washington fishing regulations.
Where is Grotto Lake?
King County, Washington. Approximate: the marker is the USGS place-name point for this water, not an agency location.
Stocked waters near Grotto Lake
- Stone Lakelake · 2 mistocked Jul 26, 2022
- Barclay Lakelake · 2 mistocked Aug 15, 2025
- Sunset Lakelake · 4 mistocked Sep 10, 2021
- Gunn Lakelake · 4 mistocked Oct 2, 2020
- Boner Lakelake · 5 mistocked Sep 30, 2020
- Crosby Lakelake · 5 mistocked Sep 10, 2022
- Cleveland Lakelake · 5 mistocked Sep 10, 2024
- Crystal Lakelake · 7 mistocked Sep 13, 2023
All stocked waters in King CountyStocked this week in Washington
Questions about Grotto Lake
- When was Grotto Lake last stocked?
- The latest reported stocking was Oct 12, 2024 (rainbow trout, 120 fish), according to Washington agency reports.
- Is Grotto Lake stocked often?
- Number 94 of 194 stocked waters in King County by stocking days. Stocked less often than most Washington waters on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Grotto Lake?
- Rainbow trout (2 stockings, 240 fish).