Halfmoon Lake trout stocking
Flathead County, Montana · lake · 3,269 ft elevation
Halfmoon Lake was last stocked 6 months ago (May 8, 2026). We have 2 stockings on record since Apr 27, 2025, 1 in the last 12 months (4,435 fish). Species stocked: brook trout.
- Number 11 of 36 stocked waters in Flathead County by stocking days.
- Stocked about as often as a typical Montana water on our record.
River conditions
Nearest USGS gage: M F Flathead River near West Glacier MT (3 km away, on a different stream or lake).
- Flow
- 465 cfs
- about normal for the last six weeks
- Gage height
- 1.68 ft
Latest reading Nov 9, 2026, 8:45 AM UTC. USGS data are provisional. Gage page at USGS.
Weather at Halfmoon Lake
- Tonight33°FAreas Of Fog3% rain · wind 3 mph
- Saturday45°FWidespread Fog1% rain · wind 2 mph
- Saturday Night34°FWidespread Fog then Chance Light Rain26% rain · wind 2 mph
- Sunday45°FChance Light Rain27% rain · wind 2 to 8 mph
- Sunday Night30°FMostly Cloudy then Widespread Fog14% rain · wind 0 to 6 mph
- Monday42°FWidespread Fog then Partly Sunny9% rain · wind 0 mph
Forecast from the National Weather Service for this location, refreshed hourly.
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Brook trout | 2 | 8,435 | 4,218 | 3.6 in |
Stocking history
20261 stocking · 4,435 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
May 8Latest Friday | Brook trout | 4,435 | 3.6 in | 376 days | Giant Springs Trout Hatchery |
20251 stocking · 4,000 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Apr 27 Sunday | Brook trout | 4,000 | 3.0 in | Giant 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 Halfmoon Lake?
Flathead County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Halfmoon Lake
- Lake Fivelake · 1 mistocked May 8, 2026
- Lion Lakelake · 7 mistocked Jun 4, 2026
- Rivers Edge Pondlake · 10 mistocked Jun 4, 2026
- Beta Lakelake · 11 mistocked Jul 26, 2025
- Fawn Lakelake · 11 mistocked Jul 26, 2025
- Doris Lake 2lake · 12 mistocked Sep 23, 2025
- Doris Lake 1lake · 12 mistocked Sep 23, 2025
- Whitefish Lakelake · 17 mistocked Apr 16, 2025
All stocked waters in Flathead CountyStocked this week in Montana
Questions about Halfmoon Lake
- When was Halfmoon Lake last stocked?
- The latest reported stocking was May 8, 2026 (brook trout, 4,435 fish), according to Montana agency reports.
- How often is Halfmoon Lake stocked?
- It was stocked once in the last 12 months.
- Is Halfmoon Lake stocked often?
- Number 11 of 36 stocked waters in Flathead County by stocking days. 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 Halfmoon Lake?
- Brook trout (2 stockings, 8,435 fish).