Rainbow Dam Reservoir trout stocking
Montana · lake
Rainbow Dam Reservoir was last stocked 4 weeks ago (Aug 26, 2026). We have 17 stockings on record since Apr 28, 2025, 9 in the last 12 months (12,341 fish). Most stockings come in June to August. Species stocked: rainbow trout.
Last stocked
4 weeks ago
Aug 26, 2026
Next planned
Not announced
Last 12 months
9 stockings
12,341 fish
On record
17 stockings
since Apr 28, 2025
Weather at Rainbow Dam Reservoir
- Tonight57°FMostly Clearwind 10 mph
- Friday90°FSunnywind 8 to 21 mph
- Friday Night49°FSlight Chance Showers And Thunderstorms then Partly Cloudy15% rain · wind 21 mph
- Saturday67°FSunnywind 21 to 25 mph
- Saturday Night41°FPartly Cloudywind 2 to 14 mph
- Sunday66°FMostly Cloudywind 3 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Rainbow Dam Reservoir stocked?
Most stockings come in June to August. Stocked 8 times in 2026, about every 17 days.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 2 | 2 | 3 | ||||||||
| 2025 | 1 | 2 | 2 | 1 | 1 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Rainbow trout | 17 | 26,947 | 1,585 | 7.8 in |
Stocking history
| Date | Species | Fish | Pounds | Hatchery |
|---|---|---|---|---|
| Aug 26, 2026 | Rainbow trout | 883 | Giant Springs Trout Hatchery | |
| Aug 25, 2026 | Rainbow trout | 640 | Giant Springs Trout Hatchery | |
| Aug 13, 2026 | Rainbow trout | 1,466 | Giant Springs Trout Hatchery | |
| Jul 28, 2026 | Rainbow trout | 1,000 | Giant Springs Trout Hatchery | |
| Jul 10, 2026 | Rainbow trout | 1,200 | Giant Springs Trout Hatchery | |
| Jun 18, 2026 | Rainbow trout | 2,000 | Giant Springs Trout Hatchery | |
| Jun 1, 2026 | Rainbow trout | 1,000 | Giant Springs Trout Hatchery | |
| Apr 23, 2026 | Rainbow trout | 1,800 | Giant Springs Trout Hatchery | |
| Oct 14, 2025 | Rainbow trout | 2,352 | Giant Springs Trout Hatchery | |
| Sep 2, 2025 | Rainbow trout | 2,000 | Giant Springs Trout Hatchery | |
| Sep 2, 2025 | Rainbow trout | 1,155 | Giant Springs Trout Hatchery | |
| Jul 30, 2025 | Rainbow trout | 1,177 | Giant Springs Trout Hatchery | |
| Jul 30, 2025 | Rainbow trout | 4,274 | Giant Springs Trout Hatchery | |
| Jul 10, 2025 | Rainbow trout | 500 | Giant Springs Trout Hatchery | |
| Jun 20, 2025 | Rainbow trout | 2,000 | Giant Springs Trout Hatchery | |
| Jun 16, 2025 | Rainbow trout | 1,500 | Giant Springs Trout Hatchery | |
| Apr 28, 2025 | Rainbow trout | 2,000 | 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.
Where is Rainbow Dam Reservoir?
Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Rainbow Dam Reservoir
- Giant Springs Fishing Pondlake · 1 mistocked Aug 25, 2026
- Wadsworth Lakelake · 8 mistocked Sep 9, 2026
- Briggs Pondlake · 21 mistocked May 28, 2026
- SSS Pondlake · 22 mistocked May 29, 2026
Questions about Rainbow Dam Reservoir
- When was Rainbow Dam Reservoir last stocked?
- The latest reported stocking was Aug 26, 2026 (rainbow trout, 883 fish), according to Montana agency reports.
- How often is Rainbow Dam Reservoir stocked?
- Stocked 8 times in 2026, about every 17 days. Across all years on record, most stockings come in June to August.
- What kind of trout are stocked in Rainbow Dam Reservoir?
- Rainbow trout (17 stockings, 26,947 fish).