Potholes Reservoir trout stocking
Grant County, Washington · lake · about 1,043 ft elevation
Potholes Reservoir was last stocked 3 weeks ago (Oct 22, 2026). We have 39 stockings on record since Nov 2, 2016, 3 in the last 12 months (84,149 fish). Most stockings come in October. Species stocked: rainbow trout.
Last stocked
3 weeks ago
Oct 22, 2026
Next planned
Not announced
Last 12 months
3 stockings
84,149 fish
On record
39 stockings
since Nov 2, 2016
- The third most stocked of 87 waters in Grant County.
- Stocked more often than 91% of Washington waters on our record.
Weather at Potholes Reservoir
- Tonight41°FMostly Cloudy4% rain · wind 1 to 6 mph
- Monday52°FMostly Cloudy then Light Rain Likely71% rain · wind 1 to 5 mph
- Monday Night41°FLight Rain Likely71% rain · wind 2 mph
- Tuesday52°FSlight Chance Light Rain19% rain · wind 2 mph
- Tuesday Night42°FMostly Cloudy9% rain · wind 3 mph
- Veterans Day55°FPartly Sunnywind 3 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Potholes Reservoir stocked?
Most stockings come in October. Stocked 3 times in 2026, about every 146 days.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | 1 | |||||||||
| 2025 | 1 | 1 | 1 | |||||||||
| 2024 | 1 | 1 | ||||||||||
| 2023 | 2 | 1 | 1 | 1 | ||||||||
| 2022 | 1 | 1 | 2 | |||||||||
| 2021 | 1 | 2 | 1 | |||||||||
| 2020 | 1 | 1 | 2 | 1 | ||||||||
| 2019 | 1 | 1 | 3 |
What is stocked
| Species | Stockings | Fish | Fish per stocking |
|---|---|---|---|
| Rainbow trout | 39 | 1,367,682 | 35,069 |
Stocking history
20263 stockings · 84,149 fish
| Date | Species | Fish | Since previous | Hatchery |
|---|---|---|---|---|
Oct 22Latest Thursday · 3 weeks ago | Rainbow trout | 12,899 556 lb | 146 days | Columbia Basin Hatchery |
May 29 Friday | Rainbow trout | 250 100 lb | 87 days | Columbia Basin Hatchery |
Mar 3 Tuesday | Rainbow trout | 71,000 602 lb | 132 days | Columbia Basin Hatchery |
20253 stockings · 84,756 fish
| Date | Species | Fish | Since previous | Hatchery |
|---|---|---|---|---|
Oct 22 Wednesday | Rainbow trout | 14,706 2,195 lb | 138 days | Columbia Basin Hatchery |
Jun 6 Friday | Rainbow trout | 250 100 lb | 88 days | Columbia Basin Hatchery |
Week of Mar 10 Mar 10 to Mar 11 | Rainbow trout | 69,800 747 lb | 326 days | Columbia Basin Hatchery |
20242 stockings · 101,222 fish
| Date | Species | Fish | Since previous | Hatchery |
|---|---|---|---|---|
Apr 18 Thursday | Rainbow trout | 69,947 699 lb | 29 days | Columbia Basin Hatchery |
Mar 20 Wednesday | Rainbow trout | 31,275 355 lb | 141 days | Columbia Basin Hatchery |
20235 stockings · 110,941 fish
- Oct 31 rainbow trout, 5,059 fish
- Jul 12 rainbow trout, 1,932 fish
- Jun 27 rainbow trout, 37,231 fish
- May 11 rainbow trout, 33,703 fish
- May 1 rainbow trout, 33,016 fish
20224 stockings · 179,775 fish
- Oct 19 rainbow trout, 35,652 fish
- Oct 5 rainbow trout, 33,784 fish
- May 18 rainbow trout, 52,839 fish
- Mar 29 rainbow trout, 57,500 fish
20214 stockings · 187,492 fish
- Oct 20 rainbow trout, 85,690 fish
- May 13 rainbow trout, 53,100 fish
- May 5 rainbow trout, 44,302 fish
- Apr 14 rainbow trout, 4,400 fish
20205 stockings · 120,968 fish
- Nov 20 rainbow trout, 27,201 fish
- Oct 21 rainbow trout, 33,080 fish
- Oct 16 rainbow trout, 3,020 fish
- Apr 21 rainbow trout, 34,000 fish
- Mar 23 rainbow trout, 23,667 fish
20195 stockings · 154,503 fish
- Oct 23 rainbow trout, 41,235 fish
- Oct 15 rainbow trout, 38,751 fish
- Oct 9 rainbow trout, 3,102 fish
- Jul 16 rainbow trout, 13,791 fish
- Apr 1 rainbow trout, 57,624 fish
20184 stockings · 204,686 fish
- Oct 22 rainbow trout, 42,161 fish
- Oct 3 rainbow trout, 3,045 fish
- Jun 15 rainbow trout, 39,680 fish
- Jun 12 rainbow trout, 119,800 fish
20172 stockings · 84,228 fish
- Oct 9 rainbow trout, 40,228 fish
- Mar 23 rainbow trout, 44,000 fish
20162 stockings · 54,962 fish
- Nov 28 rainbow trout, 40,502 fish
- Nov 2 rainbow trout, 14,460 fish
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. Seasons and limits: Washington fishing regulations.
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
- Goose Lake Upperlake · 6 mistocked Mar 3, 2026
- Pillar Lakelake · 7 mistocked May 5, 2026
- Widgeon Lakelake · 7 mistocked May 5, 2026
- Moses Lakelake · 9 mistocked Jun 23, 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 Oct 22, 2026 (rainbow trout, 12,899 fish), according to Washington agency reports.
- How often is Potholes Reservoir stocked?
- Stocked 3 times in 2026, about every 146 days. Across all years on record, most stockings come in October.
- Is Potholes Reservoir stocked often?
- The third most stocked of 87 waters in Grant County. Stocked more often than 91% of Washington waters on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Potholes Reservoir?
- Rainbow trout (39 stockings, 1,367,682 fish).