Potholes Reservoir trout stocking
Grant County, Washington · lake
Potholes Reservoir was last stocked 4 months ago (May 29, 2026). We have 4 stockings on record since Jun 6, 2025, 3 in the last 12 months (85,956 fish). Most stockings come in March, May to June and October. Species stocked: rainbow trout.
Weather at Potholes Reservoir
- Tonight56°FCloudy then Rain Showers81% rain · wind 2 to 17 mph
- Friday66°FRain Showers then Patchy Blowing Dust81% rain · wind 17 to 26 mph
- Friday Night47°FPartly Cloudy5% rain · wind 9 to 22 mph
- Saturday62°FSunnywind 1 to 9 mph
- Saturday Night45°FMostly Cloudywind 1 to 6 mph
- Sunday64°FMostly Sunnywind 2 to 6 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Potholes Reservoir stocked?
Most stockings come in March, May to June and October.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | ||||||||||
| 2025 | 1 | 1 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Rainbow trout | 4 | 86,206 | 21,552 |
Stocking history
| Date | Species | Fish | Pounds | Hatchery |
|---|---|---|---|---|
| May 29, 2026 | Rainbow trout | 250 | 100 | Columbia Basin Hatchery |
| Mar 3, 2026 | Rainbow trout | 71,000 | 602 | Columbia Basin Hatchery |
| Oct 22, 2025 | Rainbow trout | 14,706 | 2,195 | Columbia Basin Hatchery |
| Jun 6, 2025 | Rainbow trout | 250 | 100 | Columbia Basin Hatchery |
From Washington 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 Potholes Reservoir?
Grant County, Washington. Approximate: the marker is the USGS place-name point for this water, not an agency location.
Stocked waters near Potholes Reservoir
- Corral Lakelake · 4 mistocked Apr 22, 2026
- Goldeneye Lakelake · 5 mistocked May 5, 2026
- Blythe Lakelake · 5 mistocked Apr 22, 2026
- Chukar Lakelake · 5 mistocked May 5, 2026
- Pillar Lakelake · 7 mistocked May 5, 2026
- Widgeon Lakelake · 7 mistocked May 5, 2026
- Moses Lakelake · 9 mistocked Jun 23, 2026
- Heart Lakelake · 9 mistocked Apr 28, 2026
All stocked waters in Grant CountyStocked this week in Washington
Questions about Potholes Reservoir
- When was Potholes Reservoir last stocked?
- The latest reported stocking was May 29, 2026 (rainbow trout, 250 fish), according to Washington agency reports.
- How often is Potholes Reservoir stocked?
- It was stocked 3 times in the last 12 months. Across all years on record, most stockings come in March, May to June and October.
- What kind of trout are stocked in Potholes Reservoir?
- Rainbow trout (4 stockings, 86,206 fish).