When was Ackley Lake last stocked?

The latest reported stocking was May 20, 2026 (rainbow trout, 10,300 fish), according to Montana agency reports.

How often is Ackley Lake stocked?

It was stocked 1 times in the last 12 months.

What kind of trout are stocked in Ackley Lake?

Rainbow trout (4 stockings, 50,333 fish).

Ackley Lake trout stocking

Montana · lake

Ackley Lake was last stocked 4 months ago (May 20, 2026). We have 4 stockings on record since May 13, 2025, 1 in the last 12 months (24,970 fish). Species stocked: rainbow trout.

Last stocked

4 months ago

May 20, 2026

Next planned

Not announced

Last 12 months

1 stocking

24,970 fish

On record

4 stockings

since May 13, 2025

Weather at Ackley Lake

Tonight
54°F
Mostly Clear
wind 15 to 21 mph
Friday
82°F
Sunny
wind 16 to 20 mph
Friday Night
45°F
Partly Cloudy
5% rain · wind 5 to 17 mph
Saturday
68°F
Sunny
wind 3 to 10 mph
Saturday Night
39°F
Partly Cloudy
5% rain · wind 1 to 12 mph
Sunday
66°F
Partly Sunny
1% rain · wind 2 to 13 mph

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

When is Ackley Lake stocked?

Stockings are spread across the year.

By month, all years

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

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	4	50,333	12,583	4.2 in

Stocking history

Date	Species	Fish	Hatchery
May 20, 2026	Rainbow trout	10,300	Big Springs Trout Hatchery
May 20, 2026	Rainbow trout	14,670	Big Springs Trout Hatchery
May 13, 2025	Rainbow trout	15,346	Big Springs Trout Hatchery
May 13, 2025	Rainbow trout	10,017	Big Springs Trout Hatchery

From Montana 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 Ackley Lake?

Montana. The marker is the agency's location for this water; streams are often stocked at several access points.

Directions Larger map

Stocked waters near Ackley Lake

Barta Pondlake · 16 mistocked Jul 9, 2025
Dipping Vat Pondlake · 17 mistocked Jun 3, 2025
Crystal Lakelake · 23 mistocked Jun 18, 2026
Holgate Reservoirlake · 24 mistocked Jun 8, 2026
Big Casino Creek Reservoirlake · 25 mistocked Jul 8, 2025
Brewington Pond Southlake · 25 mistocked May 27, 2026
Brewington Pond Northlake · 25 mistocked May 27, 2026

Stocked this week in Montana

Questions about Ackley Lake

When was Ackley Lake last stocked?: The latest reported stocking was May 20, 2026 (rainbow trout, 10,300 fish), according to Montana agency reports.
How often is Ackley Lake stocked?: It was stocked 1 times in the last 12 months.
What kind of trout are stocked in Ackley Lake?: Rainbow trout (4 stockings, 50,333 fish).