TroutNearMe

Mason Lake trout stocking

Mason County, Washington · lake

Mason Lake was last stocked 8 weeks ago (Aug 3, 2026). We have 23 stockings on record since May 12, 2025, 10 in the last 12 months (247,670 fish). Most stockings come in August and October. Species stocked: rainbow trout, kokanee.

Last stocked
8 weeks ago
Aug 3, 2026
Next planned
Not announced
Last 12 months
10 stockings
247,670 fish
On record
23 stockings
since May 12, 2025

Weather at Mason Lake

  • Tonight
    50°F
    Rain
    98% rain · wind 2 mph
  • Friday
    60°F
    Rain
    95% rain · wind 5 to 17 mph
  • Friday Night
    44°F
    Mostly Clear
    3% rain · wind 2 to 15 mph
  • Saturday
    62°F
    Mostly Sunny
    wind 2 to 7 mph
  • Saturday Night
    43°F
    Mostly Cloudy
    1% rain · wind 1 to 7 mph
  • Sunday
    64°F
    Mostly Sunny
    1% rain · wind 1 to 5 mph

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

When is Mason Lake stocked?

Most stockings come in August and October. Stocked 6 times in 2026, usually on Mondays, about every 6 days.

By month, all years

Jan: 0 stockingsJanFeb: 0 stockingsFebMar: 0 stockingsMarApr: 2 stockings2AprMay: 1 stockings1MayJun: 2 stockings2JunJul: 2 stockings2JulAug: 4 stockings4AugSep: 0 stockingsSepOct: 3 stockings3OctNov: 1 stockings1NovDec: 0 stockingsDec
Stockings of Mason Lake by month, all years on record. This month is shown in blue.

Year by year

JanFebMarAprMayJunJulAugSepOctNovDec
20262121
202511331

What is stocked

SpeciesStockingsFishFish per stockingTypical size
Rainbow trout22411,23518,693
Kokanee149,61049,610

Stocking history

DateSpeciesFishPoundsHatchery
Aug 3, 2026Rainbow trout7,730114Eells Springs
Aug 3, 2026Rainbow trout16,295268Eells Springs
Jul 28, 2026Rainbow trout8,735123Eells Springs
Jul 28, 2026Rainbow trout6,44593Eells Springs
Jul 28, 2026Rainbow trout15,615233Eells Springs
Jul 27, 2026Rainbow trout8,120116Eells Springs
Jul 27, 2026Rainbow trout20,095394Eells Springs
Jul 27, 2026Rainbow trout18,675322Eells Springs
Jun 8, 2026Rainbow trout31,67759Eells Springs
Apr 7, 2026Rainbow trout56,100119Eells Springs
Apr 1, 2026Rainbow trout33,19061Eells Springs
Nov 10, 2025Rainbow trout2006Eells Springs
Nov 10, 2025Rainbow trout2,825193Eells Springs
Oct 15, 2025Rainbow trout9,500583Eells Springs
Oct 14, 2025Rainbow trout4,616292Eells Springs
Oct 14, 2025Rainbow trout1,14796Eells Springs
Oct 13, 2025Rainbow trout6,705493Eells Springs
Aug 19, 2025Rainbow trout39,7351,046Eells Springs
Aug 18, 2025Rainbow trout47,1201,199Eells Springs
Aug 18, 2025Rainbow trout43,5401,108Eells Springs
Show 3 older stockings
DateSpeciesFishPoundsHatchery
Aug 14, 2025Rainbow trout3,71029Eells Springs
Jun 3, 2025Rainbow trout29,46034Eells Springs
May 12, 2025Kokanee49,610177Eells Springs

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 Mason Lake?

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

DirectionsLarger map

Stocked waters near Mason Lake

All stocked waters in Mason CountyStocked this week in Washington

Questions about Mason Lake

When was Mason Lake last stocked?
The latest reported stocking was Aug 3, 2026 (rainbow trout, 7,730 fish), according to Washington agency reports.
How often is Mason Lake stocked?
Stocked 6 times in 2026, usually on Mondays, about every 6 days. Across all years on record, most stockings come in August and October.
What kind of trout are stocked in Mason Lake?
Rainbow trout (22 stockings, 411,235 fish); Kokanee (1 stocking, 49,610 fish).