When was Alta Lake last stocked?

The latest reported stocking was May 19, 2026 (kokanee, 24,600 fish), according to Washington agency reports.

How often is Alta Lake stocked?

Stocked 3 times in 2024, mostly in April, usually on Tuesdays, about every 29 days. Across all years on record, most stockings come in April to May.

Is Alta Lake stocked often?

Number 7 of 84 stocked waters in Okanogan County by stocking days. Stocked more often than 89% of Washington waters on our record. We count each day the agency reported stocking it.

What kind of trout are stocked in Alta Lake?

Rainbow trout (26 stockings, 358,484 fish); Kokanee (10 stockings, 262,152 fish).

How warm is the water near Alta Lake?

The nearest USGS gage read 46°F on Nov 9. Trout are active but slower; fishing picks up as the water warms through the day.

Alta Lake trout stocking

Okanogan County, Washington · lake · about 1,167 ft elevation

Alta Lake was last stocked 6 months ago (May 19, 2026). We have 35 stockings on record since Apr 11, 2017, 2 in the last 12 months (54,600 fish). Most stockings come in April to May. Species stocked: rainbow trout, kokanee.

Last stocked

6 months ago

May 19, 2026

Next planned

Not announced

Last 12 months

2 stockings

54,600 fish

Water temperature

46°F

Cool for trout

Number 7 of 84 stocked waters in Okanogan County by stocking days.
Stocked more often than 89% of Washington waters on our record.

River conditions

Nearest USGS gage: METHOW RIVER NEAR MOUTH NEAR PATEROS, WA (4 km away, on a different stream or lake).

Water temperature: 46°F

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.

Latest reading Nov 9, 2026, 8:30 AM UTC. USGS data are provisional. Gage page at USGS.

Weather at Alta Lake

This Afternoon
48°F
Slight Chance Light Rain
2% rain · wind 2 mph
Tonight
39°F
Chance Light Rain
44% rain · wind 2 mph
Thursday
55°F
Sunny
4% rain · wind 0 to 3 mph
Thursday Night
38°F
Mostly Cloudy
11% rain · wind 2 mph
Friday
48°F
Chance Light Rain
38% rain · wind 0 to 3 mph
Friday Night
38°F
Slight Chance Light Rain
23% rain · wind 2 mph

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

When is Alta Lake stocked?

Most stockings come in April to May. Stocked 3 times in 2024, mostly in April, usually on Tuesdays, about every 29 days.

By month, all years

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

Year by year

	Apr	May	Jun	Oct
2026	1	1
2025	1	1
2024	2	1
2023	1	3
2022	1	2
2021	1	4
2020	1	2		2
2019	2	1	1

What is stocked

Species	Stockings	Fish	Fish per stocking
Rainbow trout	26	358,484	13,788
Kokanee	10	262,152	26,215

Stocking history

20262 stockings · 54,600 fish

Date	Species	Fish	Since previous	Hatchery
May 19Latest Tuesday	Kokanee	24,600 51 lb	5 weeks	Omak Hatchery
Apr 14 Tuesday	Rainbow trout	30,000 390 lb	344 days	Chelan Hatchery

20252 stockings · 56,002 fish

Date	Species	Fish	Since previous	Hatchery
May 5 Monday	KokaneeRainbow trout	55,002 575 lb	32 days	Omak Hatchery, Chelan Hatchery
Apr 3 Thursday	Rainbow trout	1,000 826 lb	317 days	Wells Hatchery

20243 stockings · 56,000 fish

Date	Species	Fish	Since previous	Hatchery
May 21 Tuesday	Kokanee	25,000 88 lb	3 weeks	Omak Hatchery
Apr 30 Tuesday	Rainbow trout	30,000 667 lb	29 days	Chelan Hatchery
Apr 1 Monday	Rainbow trout	1,000 935 lb	307 days	Wells Hatchery

20234 stockings · 56,365 fish

May 30 kokanee, 25,000 fish
May 11 rainbow trout, 365 fish
May 5 rainbow trout, 30,000 fish
Apr 19 rainbow trout, 1,000 fish

20223 stockings · 62,315 fish

May 12 rainbow trout, 35,300 fish
May 9 kokanee, 25,000 fish
Week of Apr 18 rainbow trout, 2,015 fish

20215 stockings · 66,150 fish

May 25 rainbow trout, 10,000 fish
May 17 kokanee, 25,000 fish
May 11 rainbow trout, 28,000 fish
May 4 rainbow trout, 3,000 fish
Apr 14 rainbow trout, 150 fish

20205 stockings · 70,955 fish

Oct 23 rainbow trout, 13,500 fish
Oct 12 rainbow trout, 555 fish
May 6 rainbow trout, 27,500 fish
May 5 kokanee, 27,000 fish
Apr 27 rainbow trout, 2,400 fish

20194 stockings · 77,363 fish

Jun 11 rainbow trout, 174 fish
May 7 kokanee, 35,064 fish
Apr 30 rainbow trout, 40,000 fish
Apr 22 rainbow trout, 2,125 fish

20183 stockings · 68,391 fish

May 14 rainbow trout, 40,000 fish
May 2 kokanee, 25,241 fish
Apr 10 rainbow trout, 3,150 fish

20174 stockings · 52,495 fish

Jun 17 rainbow trout, 125 fish
May 23 rainbow trout, 24,000 fish
May 9 kokanee, 25,245 fish
Apr 11 rainbow trout, 3,125 fish

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 Alta Lake?

Okanogan 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 Alta Lake

Lake Pateroslake · 9 mistocked Jun 8, 2017
Mitchell Creekstream · 9 mistocked Aug 11, 2026
Antilon Lake - Southlake · 11 mistocked Sep 15, 2026
Antilon Lake - Northlake · 11 mistocked Sep 14, 2026
Gold Creekstream · 11 mistocked Aug 3, 2026
Wapato Lakelake · 13 mistocked Jun 2, 2026
Roses Lakelake · 13 mistocked Oct 12, 2026
Chelan Riverstream · 14 mistocked Aug 21, 2025

All stocked waters in Okanogan County Stocked this week in Washington

Questions about Alta Lake

When was Alta Lake last stocked?: The latest reported stocking was May 19, 2026 (kokanee, 24,600 fish), according to Washington agency reports.
How often is Alta Lake stocked?: Stocked 3 times in 2024, mostly in April, usually on Tuesdays, about every 29 days. Across all years on record, most stockings come in April to May.
Is Alta Lake stocked often?: Number 7 of 84 stocked waters in Okanogan County by stocking days. Stocked more often than 89% of Washington waters on our record. We count each day the agency reported stocking it.
What kind of trout are stocked in Alta Lake?: Rainbow trout (26 stockings, 358,484 fish); Kokanee (10 stockings, 262,152 fish).
How warm is the water near Alta Lake?: The nearest USGS gage read 46°F on Nov 9. Trout are active but slower; fishing picks up as the water warms through the day.