When was Lost Lake last stocked?

The latest reported stocking was Oct 10, 2026 (cutthroat trout and rainbow trout, 3,700 fish), according to Washington agency reports.

How often is Lost Lake stocked?

It was stocked once in the last 12 months. Across all years on record, most stockings come in May and October.

Is Lost Lake stocked often?

Number 35 of 127 stocked waters in Snohomish County by stocking days. Stocked about as often as a typical Washington water on our record. We count each day the agency reported stocking it.

What kind of trout are stocked in Lost Lake?

Cutthroat trout (7 stockings, 18,703 fish); Rainbow trout (6 stockings, 3,040 fish).

How warm is the water near Lost Lake?

The nearest USGS gage read 47°F on Nov 9. Trout are active but slower; fishing picks up as the water warms through the day.

Lost Lake trout stocking

Snohomish County, Washington · lake · about 962 ft elevation

Lost Lake was last stocked 4 weeks ago (Oct 10, 2026). We have 7 stockings on record since Jun 14, 2017, 1 in the last 12 months (3,700 fish). Most stockings come in May and October. Species stocked: cutthroat trout, rainbow trout.

Last stocked

4 weeks ago

Oct 10, 2026

Next planned

Not announced

Last 12 months

1 stocking

3,700 fish

Water temperature

47°F

Cool for trout

Number 35 of 127 stocked waters in Snohomish County by stocking days.
Stocked about as often as a typical Washington water on our record.

River conditions

Nearest USGS gage: SULTAN RIVER BELOW DIVERSION DAM NEAR SULTAN, WA (5 km away, on a different stream or lake).

Water temperature: 47°F
Flow: 122 cfs; lower than usual for the last six weeks
Gage height: 25.82 ft

Cool for trout. Trout are active but slower; fishing picks up as the water warms through the day.

Water temperature (daily high), last six weeks (°F), daily. Latest: 48 °F on Nov 8. The green band is the ideal range for trout.

Streamflow, last six weeks (cfs), daily. Latest: 108 cfs on Nov 7.

Latest reading Nov 9, 2026, 9:00 AM UTC. USGS data are provisional. Gage page at USGS.

Weather at Lost Lake

Tonight
46°F
Light Rain
93% rain · wind 2 to 6 mph
Thursday
51°F
Chance Light Rain then Partly Sunny
30% rain · wind 1 mph
Thursday Night
44°F
Mostly Cloudy then Light Rain Likely
65% rain · wind 1 to 6 mph
Friday
51°F
Light Rain
93% rain · wind 1 to 6 mph
Friday Night
48°F
Light Rain
79% rain · wind 1 to 5 mph
Saturday
63°F
Chance Light Rain
31% rain · wind 0 to 5 mph

Forecast from the National Weather Service for this location, refreshed hourly.

When is Lost Lake stocked?

Most stockings come in May and October.

By month, all years

Stockings of Lost Lake by month, all years on record. This month is shown in blue.

Year by year

	May	Jun	Aug	Oct
2026				1
2025				1
2024				1
2021	1
2019	1
2018			1
2017		1

What is stocked

Species	Stockings	Fish	Fish per stocking
Cutthroat trout	7	18,703	2,672
Rainbow trout	6	3,040	507

Stocking history

20261 stocking · 3,700 fish

Date	Species	Fish	Since previous	Water	Hatchery
Oct 10Latest Saturday · 4 weeks ago	Cutthroat troutRainbow trout	3,700 92 lb	53 weeks	52°F	Arlington Hatchery

20251 stocking · 3,050 fish

Date	Species	Fish	Since previous	Water	Hatchery
Oct 4 Saturday	Cutthroat troutRainbow trout	3,050 77 lb	363 days		Arlington Hatchery

20241 stocking · 2,993 fish

Date	Species	Fish	Since previous	Water	Hatchery
Oct 6 Sunday	Cutthroat trout	2,993 86 lb	1245 days		Arlington Hatchery

20211 stocking · 3,000 fish

May 10 cutthroat trout, rainbow trout, 3,000 fish

20191 stocking · 3,000 fish

May 11 cutthroat trout, rainbow trout, 3,000 fish

20181 stocking · 3,000 fish

Aug 3 cutthroat trout, rainbow trout, 3,000 fish

20171 stocking · 3,000 fish

Jun 14 cutthroat trout, rainbow trout, 3,000 fish

Water: the daily high at the nearest USGS gage on the stocking day, where the gage has it.

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 Lost Lake?

Snohomish County, Washington. Approximate: the marker is the USGS place-name point for this water, not an agency location.

Directions Larger map Washington fishing regulations

Stocked waters near Lost Lake

Hughes Lakelake · 2 mistocked Sep 22, 2017
Lake Roesigerlake · 4 mistocked May 7, 2026
Storm Lakelake · 5 mistocked Apr 14, 2026
Wagner Lakelake · 6 mistocked Apr 23, 2026
Flowing Lakelake · 6 mistocked May 21, 2026
Chain Lakelake · 6 mistocked May 6, 2026
Panther Lakelake · 7 mistocked Mar 23, 2026
Bathtub Lakes (8)lake · 8 mistocked Jul 27, 2024

All stocked waters in Snohomish County Stocked this week in Washington

Questions about Lost Lake

When was Lost Lake last stocked?: The latest reported stocking was Oct 10, 2026 (cutthroat trout and rainbow trout, 3,700 fish), according to Washington agency reports.
How often is Lost Lake stocked?: It was stocked once in the last 12 months. Across all years on record, most stockings come in May and October.
Is Lost Lake stocked often?: Number 35 of 127 stocked waters in Snohomish County by stocking days. Stocked about as often as a typical Washington water on our record. We count each day the agency reported stocking it.
What kind of trout are stocked in Lost Lake?: Cutthroat trout (7 stockings, 18,703 fish); Rainbow trout (6 stockings, 3,040 fish).
How warm is the water near Lost Lake?: The nearest USGS gage read 47°F on Nov 9. Trout are active but slower; fishing picks up as the water warms through the day.