Ackley Lake trout stocking
Judith Basin County, Montana · lake · 4,315 ft elevation
Ackley Lake was last stocked 6 months ago (May 20, 2026). We have 2 stockings on record since May 13, 2025, 1 in the last 12 months (24,970 fish). Species stocked: rainbow trout.
Last stocked
6 months ago
May 20, 2026
Next planned
Not announced
Last 12 months
1 stocking
24,970 fish
On record
2 stockings
since May 13, 2025
- Tied for the most stocked water in Judith Basin County (2 stocking days on record).
- Stocked about as often as a typical Montana water on our record.
Weather at Ackley Lake
- Today64°FMostly Cloudy2% rain · wind 7 to 26 mph
- Tonight36°FMostly Cloudy3% rain · wind 3 to 7 mph
- Monday56°FPartly Sunny2% rain · wind 6 mph
- Monday Night38°FMostly Cloudy7% rain · wind 3 to 9 mph
- Tuesday56°FMostly Sunny7% rain · wind 9 to 24 mph
- Tuesday Night39°FPartly Cloudywind 10 to 15 mph
Forecast from the National Weather Service for this location, refreshed hourly.
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Rainbow trout | 2 | 50,333 | 25,167 | 4.2 in |
Stocking history
20261 stocking · 24,970 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
May 20Latest Wednesday | Rainbow trout | 24,970 | 3.5 in | 372 days | Big Springs Trout Hatchery |
20251 stocking · 25,363 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
May 13 Tuesday | Rainbow trout | 25,363 | 3.7 in | 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. Seasons and limits: Montana fishing regulations.
Where is Ackley Lake?
Judith Basin County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
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 Sep 16, 2026
- Brewington Pond Northlake · 25 mistocked May 27, 2026
All stocked waters in Judith Basin CountyStocked this week in Montana
Questions about Ackley Lake
- When was Ackley Lake last stocked?
- The latest reported stocking was May 20, 2026 (rainbow trout, 24,970 fish), according to Montana agency reports.
- How often is Ackley Lake stocked?
- It was stocked once in the last 12 months.
- Is Ackley Lake stocked often?
- Tied for the most stocked water in Judith Basin County (2 stocking days on record). Stocked about as often as a typical Montana water on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Ackley Lake?
- Rainbow trout (2 stockings, 50,333 fish).