Hatfield Reservoir trout stocking
Daniels County, Montana · lake · 2,971 ft elevation
Hatfield Reservoir was last stocked 5 months ago (Jun 9, 2026). We have 2 stockings on record since Jun 9, 2025, 1 in the last 12 months (1,000 fish). Species stocked: rainbow trout.
Last stocked
5 months ago
Jun 9, 2026
Next planned
Not announced
Last 12 months
1 stocking
1,000 fish
On record
2 stockings
since Jun 9, 2025
- Tied for the most stocked water in Daniels County (2 stocking days on record).
- Stocked about as often as a typical Montana water on our record.
Weather at Hatfield Reservoir
- Today47°FPatchy Fog then Sunnywind 8 to 14 mph
- Tonight29°FPartly Cloudywind 9 to 14 mph
- Friday47°FMostly Sunnywind 10 to 15 mph
- Friday Night36°FPartly Cloudywind 10 to 20 mph
- Saturday54°FSunnywind 5 to 20 mph
- Saturday Night34°FPartly Cloudywind 5 to 13 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 | 2,000 | 1,000 | 7.0 in |
Stocking history
20261 stocking · 1,000 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Jun 9Latest Tuesday | Rainbow trout | 1,000 | 7.0 in | 365 days | Fort Peck Hatchery |
20251 stocking · 1,000 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Jun 9 Monday | Rainbow trout | 1,000 | 7.0 in | Fort Peck 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 Hatfield Reservoir?
Daniels County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Hatfield Reservoir
- Killenbeck Reservoirlake · 16 mistocked May 8, 2026
- Carney Pondlake · 17 mistocked May 8, 2026
All stocked waters in Daniels CountyStocked this week in Montana
Questions about Hatfield Reservoir
- When was Hatfield Reservoir last stocked?
- The latest reported stocking was Jun 9, 2026 (rainbow trout, 1,000 fish), according to Montana agency reports.
- How often is Hatfield Reservoir stocked?
- It was stocked once in the last 12 months.
- Is Hatfield Reservoir stocked often?
- Tied for the most stocked water in Daniels 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 Hatfield Reservoir?
- Rainbow trout (2 stockings, 2,000 fish).