Willow Creek Reservoir trout stocking
Lewis and Clark County, Montana · lake · 4,151 ft elevation
Willow Creek Reservoir was last stocked 4 months ago (Jul 13, 2026). We have 7 stockings on record since Jun 2, 2025, 4 in the last 12 months (151,773 fish). Most stockings come in June. Species stocked: rainbow trout.
- The third most stocked of 12 waters in Lewis and Clark County.
- Stocked more often than 94% of Montana waters on our record.
River conditions
USGS gage: Sun River bl Willow Cr nr Augusta MT (6 km away).
- Flow
- 173 cfs
- about normal for the last six weeks
- Gage height
- 2.12 ft
Latest reading Nov 9, 2026, 12:15 PM UTC. USGS data are provisional. Gage page at USGS.
Weather at Willow Creek Reservoir
- Tonight43°FMostly Cloudy5% rain · wind 10 to 23 mph
- Saturday61°FPartly Sunny1% rain · wind 5 to 9 mph
- Saturday Night41°FMostly Cloudywind 5 to 9 mph
- Sunday57°FMostly Sunnywind 9 to 28 mph
- Sunday Night32°FMostly Cloudy1% rain · wind 2 to 13 mph
- Monday52°FPartly Sunnywind 3 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Willow Creek Reservoir stocked?
Most stockings come in June. Stocked 4 times in 2026, mostly in June, usually on Mondays, about every 14 days.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 2 | 1 | |||||||||
| 2025 | 3 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Rainbow trout | 7 | 265,765 | 37,966 | 5.5 in |
Stocking history
20264 stockings · 151,773 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Jul 13Latest Monday | Rainbow trout | 34,629 | 4.6 in | 4 weeks | Giant Springs Trout Hatchery |
Jun 15 Monday | Rainbow trout | 31,940 | 3.4 in | 2 weeks | Big Springs Trout Hatchery |
Jun 1 Monday | Rainbow trout | 45,204 | 5.5 in | 4 days | Bluewater Springs Trout Hatchery |
May 28 Thursday | Rainbow trout | 40,000 | 5.5 in | 339 days | Giant Springs Trout Hatchery |
20253 stockings · 113,992 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Jun 23 Monday | Rainbow trout | 32,933 | 3.7 in | 4 days | Giant Springs Trout Hatchery |
Jun 19 Thursday | Rainbow trout | 20,735 | 3.9 in | 17 days | Big Springs Trout Hatchery |
Jun 2 Monday | Rainbow trout | 60,324 | 5.5 in | Bluewater 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 Willow Creek Reservoir?
Lewis and Clark County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Willow Creek Reservoir
- Clemons Coulee Reservoirlake · 4 mistocked Jun 17, 2026
- Nilan Reservoirlake · 7 mistocked May 26, 2026
- Swazee Lakelake · 8 mistocked Sep 11, 2026
- Pishkun Reservoirlake · 9 mistocked May 1, 2026
- Tunnel Lakelake · 9 mistocked May 21, 2026
- Anderson Pondlake · 14 mistocked Jun 17, 2026
- Renshaw Lakelake · 17 mistocked Sep 17, 2025
- Wood Lakelake · 19 mistocked May 21, 2026
All stocked waters in Lewis and Clark CountyStocked this week in Montana
Questions about Willow Creek Reservoir
- When was Willow Creek Reservoir last stocked?
- The latest reported stocking was Jul 13, 2026 (rainbow trout, 34,629 fish), according to Montana agency reports.
- How often is Willow Creek Reservoir stocked?
- Stocked 4 times in 2026, mostly in June, usually on Mondays, about every 14 days. Across all years on record, most stockings come in June.
- Is Willow Creek Reservoir stocked often?
- The third most stocked of 12 waters in Lewis and Clark County. Stocked more often than 94% of Montana waters on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Willow Creek Reservoir?
- Rainbow trout (7 stockings, 265,765 fish).